penis

All posts tagged penis

CIRCUMCISION

Published June 30, 2013 by Tony

CUT or UNCUT?

In Africa, where HIV cases are very numerous and for years the contagion takes its toll without stopping, years ago a study among subjects circumcised and uncircumcised pointed out that circumcision led to a lower risk of infection.
The news went around the world and since then many doctors of any nationality, without posing the question, sided in favor of circumcision recommending it to all, as a method of HIV prevention and other urinary infections. Among them, the American Academy of pediatric that from long recommends all families the circumcision for all males newborn.
Fortunately, a lot of pediatricians and urologists, as Italians, have a different view and practice circumcision for therapeutic purposes only and exclusively for the correction of Phimosis, a common children pathology characterized by an abnormal narrowing of the foreskin, and only as a last-resort when the conventional medical therapies are not successful.
I say “fortunately” and there’ll explain why.
Apart from the fact that not all of us live in Africa or in countries where HIV is so widespread, to defend themselves effectively by this disease, there are also other better methods. Most HIV infections in Africa are transmitted by contaminated injections and surgical procedures. In  the studies, the effects of other variables that would influence HIV infection were not considered, and critical data were omitted. For example, the HIV status of the female partners of the men was not determined. It was not known which infections were heterosexually transmitted, the effect of circumcision on the rate of heterosexually transmitted HIV could not actually be determined. There are at least 17 observational studies that have not found any benefit from male circumcision in reducing HIV transmission. Among developed countries, the United States has the highest circumcision rate and the highest rate of heterosexually transmitted HIV. Other countries have lower rates of HIV infection than the United States and do not practice circumcision.
In addition, we must consider that the Postectomia surgery is not without risks, and although the incidence is low (0.1 to 35%) there may be complications such as pain, difficulty urinating, local edema, bleeding, flaws, fistula and complications to the penis.

Beyond HIV, circumcision was already widespread in some countries for religious reasons, but this is another story also questionable.
Our Lord has created us as we are and there was no reason to include some organ that was a simple plus. From an evolutionary and physician perspective, every organ in the human body has its specific task and nothing is to be considered as superfluous, beyond what the different cultures and religions suggest or require.
Therefore, the foreskin of the penis was not put there by accident and has its own importance.
One of the major side effects that many
circumcised people complain, it is the reduction of overall sensitivity, due to the loss of erogenous tissue. There is a less manageability of the penis, masturbation difficulties, numbness of the glans (which remaining exposed, it is no longer protected from rubbing on clothing), and of the frenulum (for many the most important for the purposes of pleasure), resulting in difficulty orgasmic. Refractory periods (recovery time) become longer and it’s necessary a stronger stimulation of the tissues, which “stressed” can make painful and frustrating the sexual intercourse and masturbation.

In all countries where circumcision is uncommon (like Europe, Argentina, Belize, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, Ecuador, Jamaica, Paraguay, Peru, Uruguay and Venezuela), there was not an increase of HIV cases that can be attributed to lack of circumcision. American researchers tend to avoid studying or acknowledging the sexual and psychological harm associated with circumcision. This pro-circumcision bias in American medicine reflects the pro-circumcision bias in American culture. The United States is the only country in the world that in most cases circumcises some of its male infants for non-religious reasons.

circumcision

Here are ten compelling arguments against circumcision:

Argument #1
The foreskin is natural, necessary and important.
Far from an unnecessary extra flap of skin, the foreskin is actually a highly sensitive and functional organ that serves several important purposes. First, the glans or head of the penis is meant to be an internal organ and the foreskin covers and protects it from harm in much the same way as the eyelid protects the eye. In circumcised males, the glans becomes hardened or keratinized by constant exposure and irritation, which reduces sensitivity. The foreskin itself is a highly sensitive erogenous zone and has more nerve receptors and a greater variety of nerve receptors than any other part of the penis.

Argument #2
Most medical experts do not recommend neonatal circumcision.
There is no medical justification for routine infant circumcision. The purported correlations between an intact foreskin and various diseases and problems that circumcisers have used for years to convince parents to let them cut their newborns have been gradually disproved or shown to be insignificant.
A detailed breakdown of the connections— or lack thereof—between circumcision and conditions such as penile and prostate cancer, urinary tract infections, sexually transmitted diseases including HIV/AIDS, phimosis, balanitis xerotica obliterans (BXO) and even cervical cancer in female partners, is beyond the scope of this article, but parents should be aware that the American Academy of Pediatrics states that, “The existing scientific evidence is not sufficient to recommend routine circumcision,” and the Canadian Paediatric Society confirmed their stance in 1996 that, “Circumcision of newborns should not be routinely performed.”

Argument #3
The penis is naturally self-cleaning and proper hygiene is easy to teach and perform.
The foreskin protects the glans from contaminants and debris. An intact foreskin can also produce a natural moisturizing substance with antibacterial and antiviral properties called smegma, which helps keep the glans soft and the penis clean and healthy.
When a baby boy is born, the foreskin is actually attached to the glans to shelter the developing glans from harm. Some doctors still suggest that parents should forcibly retract a baby’s foreskin in order to clean it, but there is no need to do so. The foreskin will naturally detach from the glans as the boy ages and eventually he’ll be able to retract it. Pulling back the foreskin in the shower or bath and rinsing it with warm water is all the cleaning an adult requires in this area. Surgical alteration is hardly necessary to keep the penis clean when warm water and soap are readily available.

Argument #4
Circumcision affects sexual function and desensitizes the penis.
Removing a highly sensitive organ like the foreskin will logically reduce sensation in the genital area. In fact, this point was touted in Victorian times as a benefit of the operation. Masturbation was then thought of as a grave sin and a serious health risk, to blame for nearly all diseases. Since circumcised boys would receive less pleasure from sexual stimulation, they would be less likely to engage in the evil of masturbation.
The foreskin facilitates sexual intercourse by allowing the penis to move in and out of the vagina in its own double-layered sheath of movable skin. Circumcised males lack the self- lubricating properties of the foreskin, which creates friction during intercourse that can result in small tears and bleeding in both the man and woman. Artificial lubricants have been developed largely to make up for the function of the foreskin in circumcised men. The long-term effects of these chemical lubricants are not known.

Argument #5
He doesn’t need to be cut to fit in.
Much has been made of the idea that an uncircumcised boy in our modern society could find himself ridiculed by other circumcised boys in locker rooms, causing serious psychological damage. Boys will find any excuse to make fun of each other and if it’s not the appearance of his penis, it will be something else. Providing a child with a combination of education, honesty and confidence is the best defense against this sort of teasing.
The rate of infant circumcision has been falling steadily since the 1980s, so an uncircumcised boy today may actually find himself in the majority. In 1996, the rate of circumcision in Canada was between three and six percent, falling from a high of 46 percent.
Another pro-cutting argument is the desire of the circumcised father to have his son look the same as him, but this is not so much for the benefit of the son as it is for the father. A boy will be capable of understanding the difference and the reason for it and may someday even thank his parents for giving him the choice his father never had.

Argument #6
Circumcision is painful and traumatic for babies.
Many circumcisers try to convince parents that babies are incapable of experiencing pain and even if they do feel it, they won’t remember it. In fact, scientific evidence proves that babies do feel pain and may feel it even more acutely than adults. Yet most circumcisions are performed without general anaesthesia, which is dangerous for children, and frequently without local anaesthesia in the form of shots or creams that cannot completely eliminate the pain anyway.
The pain of circumcision can have serious repercussions on the body of a newborn baby. Babies are known to scream hysterically, stop breathing, lose consciousness, vomit and defecate during the operation. The shock of the surgery can even cause ruptures of the heart, lungs and stomach.
The effects of this trauma can continue after the surgery is completed. Some babies experience severely disrupted sleep patterns, breastfeeding complications and interruptions of the infant- mother attachment process after circumcision.

Argument #7
There are serious potential complications to circumcision.
The rates of complications and accidents related to circumcision is nearly impossible to determine since hospitals are not required to report these incidents, but it is estimated to range from two to 10 percent, while at least one out of every 500 circumcisions results in a serious surgical accident.
The risks of circumcision include bleeding, infection, necrosis (the penis dies and falls off), gangrene, BXO, urinary tract infection, urinary retention, meatal ulceration or stenosis (the urinary opening is damaged, scarred or contracted), urethral fistula (an abnormal tube-like passage in the urethra), hypospadias or epispadias (when the urinary opening appears along the top or bottom of the penis rather than at the tip of the glans) and lymphedema (a swelling of the skin caused by a build-up of lymph fluid).
Botched circumcisions can result in buried penis (the penis retreats inside the body), adhesions, excessive skin loss, curvature of the penis, cysts, skin tags, pitting of the glans, scarring, impotence, amputation of the glans or the entire penis and even death.

Argument #8
We don’t mutilate the genitals of our baby girls.
Female genital mutilation (FGM) is practiced in many cultures around the world. The World Health Organization estimates that as many as two million girls each year are subjected to some sort of genital cutting, which may include amputation of the clitoris, the hood of the clitoris and/or the labia, as well as stitching closed the vaginal opening afterward. Three quarters of these cases occur in the countries of Egypt, Ethiopia, Kenya, Nigeria, Somalia and Sudan.
This kind of genital surgery is seen in the West as barbaric, tribal and torturous. Since the 1990s when FGM was first revealed to the North American public at large, major efforts have gone into eradicating the practice around the world. Yet we still expose our boys to similarly painful, traumatic and unnecessary surgery in North America as a matter of course.

Argument #9
I do not believe that those who have sex (hetero-or homo-) with a stranger they feel protected just because are circumcised, and should always use a condom. A nonsense. Condoms are better than 99% effective and if circumcision results in lower condom use, the rate of HIV infections will increase.

Argument #10
Religious tradition is a poor excuse to subject your baby to circumcision. The history of circumcision is a long and complicated one. As a symbolic ritual it appeared independently in many different ancient cultures around the world. It has been imbued with a variety of meanings—identifying a priestly class, indicating privilege, initiating boys into manhood and representing a commitment to God.

To conclude, I think that as in all the important choices (sexuality, religion, lifestyle, study, work, career) parents ought not take these decisions on their own and make choices that might not be shared by their children when they become adults, especially for those that are irreversible, such as circumcision.

How important the dimensions are

Published April 19, 2013 by Tony

Penis size influence male attractiveness

No doubt that the research of the ideal partner is done on an aesthetic basis, at least at first glance, because subjectively characteristics affect more than others do.
For example, according to woman preferences, in a man the physical prowess strikes more, like the size of the shoulders and musculature in general, besides the beauty of the face.
But for our ancestors, the prehistoric men, were these same princes worth?
Starting from the fact that our ancestors did not use clothes, a team of Australian biologists wondered if at that time, the male genital organ easily visible, fell within the parameters of choice of a potential partner. It’s to say if penis size interacts with body shape and height to influence male attractiveness.
It’s obvious that going around naked, the sexual organ could be evaluated and taken into account, the same way as other physical characteristics of a male subject.
In particular, the team was asking what role the penis size may have had for women in their partner choice. Given that man is the only primate to have a sexual organs bigger than other, this can be taken into consideration as an element that has been subject of evolution, that is to say that the choices that women did in the past, may have influenced the evolution of the partner, so that those who had a bigger penis was favored to the others. To see whether this kind of evolutionary heritage was still active today, the team of researchers at the University of Ottawa, has analyzed the importance that the penis traits gets in determining the level of a man’s attractiveness.
Using different animated images in 3D, full-size, about male bodies of different height, body shape and size of the penis, coming from a study of Italian men, the researchers recorded the preferences of 105 women chosen for the test.
It came out that in addition to prefer broad shoulders and narrow hips, also the size of the penis had been valued by women as a factor of attractiveness, and that in general the higher dimensions are considered more attractive, although up to certain values. Namely, the extreme dimensions (such as height or size of the penis) were no longer considered as attractive. Therefore, the size of the genital organs helps to determine the masculine appeal, and the study was published in the Proceedings of the National Academy of Sciences (PNAS). These results, furthermore, as authors say, lead to believe that in the past the women’s choices have driven the evolution to promote (genetically) bigger penis in humans, till to reach the existent average size.

.

New frontiers of cosmetic surgery

Published March 26, 2013 by Tony

Youth & Wellbeing have no limit

New fashions and the desire to have a body always youth and perfect has led people to resort more and more to cosmetic or plastic surgery. Obviously, between mammoplasty, facelifts and liposuction, women are the ones who undergo more to surgical procedures and, oddly enough, in recent years have increased also the demands for corrective actions towards the “private parts”.
Compared to 2011, in 2012 there was a 24% increase of the operations to the sexual organs, despite the high costs and risks deriving from such surgeries.
The most common (female) surgical procedures are:

Labioplasty - the reduction of small or big labia that is done for purely aesthetic reasons, in the name of the much-vaunted eternal youth.

Vaginoplasty – An intervention intended to tighten the vagina. It is used especially after childbirth, as a definitive act to treat the symptoms related to the relaxation of the perineal and vaginal canal, to improve its function and sexual activity, but also to give to the partner the feeling of having to deal with a teen-aged vagina.

Vulvar Rejuvenation – The objective of this surgery is to improve the external genitalia appearance. By injection of hyaluronic acid or fat in order to give a certain tone to the vulva. The “rejuvenation” can also interest mound and labia.

Hymenoplasty – Although the reconstruction of the hymen is required by women whose culture imposes the virginity for social or religious reasons, some women make recourse to this kind of surgery for pure ambition.

labiaplasty  vaginoplasty  labioplasty

For men,
instead, operations are primarily aimed at the enlargement or augmentation surgery (phalloplasty) of penis, which increase the length or width of the penis.

penis enlargement  girth enlargement  length and width enlargement

.

Chinese Penis Fish

Published March 2, 2013 by Tony

EDIBLE WORMS

Urechis unicinctus

Apart from a very small worm that grows in a famous Sardinia cheese, called “Casu Marzu“, and that some eats with the cheese, I had never heard of other edible worms, at least in Western culture. It is known that in Asian and Eastern countries anything is eaten, including insects and larvae, but to know that in Korea they eat some giant worms, well… those images have particularly disgusted me. Although the thought of eating worms and insect larvae is rather shocking for many of you, I guess!
The worm, to which I refer, belongs to a species that lives mainly in the Yellow and China Sea, and its scientific name is Urechis unicinctus, a species of marine spoon worm.

It is widely referred to as the fat innkeeper worm or the penis fish that lives in burrows in sand and mud.

Why penis fish? Well… look at the pictures and you’ll understand!
The spoon worms or Echiura, are a small group of marine animals similar in size and habit.
This spoon worm is commonly eaten raw with salt and sesame oil in Korea and in parts of Japan. It is also used for fishing bait.
In Chinese cuisine the worm is stir-fried with vegetables, or dried and powdered to be used as a savory taste enhancer. In particular, the worm is considered an important ingredient in Shandong cuisine and is used in numerous recipes.

Looking at its pictures, it looks soft and tender and the given “penis” name truly suits it!
By hearsay, people prefer to eat it raw because the heat would make it inconsistent.
How about… do you want to taste it?
And how do you prefer it, into small pieces or put it all in your mouth……

Chinese Penis Fish

..

..

SEXUAL ORGANS ANATOMY

Published February 3, 2013 by Tony

 

HUMAN GENITALIA

SEXUAL ORGANS DEEPENING


I’m sure most people, and young especially, are not very familiar with our organs and their functioning. Our body is a masterpiece difficult to conceive, just think of our brain and mind to realize this. But beyond complex or internal organs on which you do not need in-depth knowledge, we all should know a little about sexual organs, our reproductive organs we see and use every day. Not being gynecologists or urologists, there is no need to go into detail, and beyond some scientific detail or strange name, we should understand how these organs work, to be then able to understand their possible dysfunction.
I will examine both male and female sexual organs, simply telling the most important things, and I hope that for you who follow me the reading will be fluent and interesting. As well as I hope that the images, necessary in these cases, do not disturb anyone, convinced that in 2013 no one should feel embarrassed or troubled anymore by such images. [Click on any image to magnify it].
In most “civilized” human societies, genitals are considered a public indecency and sometimes even illegal if left uncovered in public. It ranges from prohibition of exposure of genital areas, buttocks and female breasts. In some Islamic countries the exposure of any part of the female body is even considered indecent. If sexual acts are performed, with or without an element of nudity, this can be considered a public indecency, which may be a more serious criminal offense. Presently, public nudity isn’t permitted in any country and in some states it is only allowed on specific sites that have been assigned by the local authorities. I realize that the post is long because too many things to say, but you can read it a little at a time, if you really are determined to learn more.
As always, I remain at your disposal for any question or friendly comment.

Female Genitals


EXTERNAL PARTS: VULVA

Female Tanner StagesThe term “VULVA” refers to the external part of the VAGINA that has major and minor anatomical structures including:

mons pubis
labia majora
labia minora
clitoris
vulval vestibule
opening of the vagina

Let’s take a look at each of these parts now.

Mons pubis
monsalso known as “mons veneris” or “mound of Venus”, is the adipose tissue lying above the pubic bone (pelvis), the area where during puberty hair start to grow. Its size is depending by genetic factors and body fat. It’s an erogenous zone because from it take form the “larger lips”, the most external organ of the vagina called labia major.

Labia majora
Labium major(nicknamed camel toe), is part of vulva like two long lips that have the purpose to protect the vagina, in fact around them we also find hair. They extend from the mound till perineum, where somevulva_shape centimeters after come the anus. Depending on personal characteristic, the labia major can be more or less open and with different shape, size and color. A 2004 research says that average length ranges within 7.0 – 12.0 cm. A little bit inside from these lips, to either side of the opening of the vagina, develop other two smaller lips, the labia minora.

Labia minora
Labium minoror inner labia, are another protection for the vagina opening. These inner two flaps of skin also change in size and shape from woman to woman and, either can be absent or fleshy/long till to appear outside labia major. A 2004 research says that average length ranges from 2 -10 cm. The inner skin of these labia forms a small cavity called vestibule. In the upper part of the vestibule is the clitoral hood, followed by the femaleLabium minor_big urethral orifice, while almost in middle is the vulval vestibule with the vaginal opening (vagina), the orifice used for sexual penetration (although these holes are very close with one another, the urethral orifice is too small for man to get a wrong target!)   Mons together labia major and minor are the main responsible of the external shape of the pussy.

Clitoris
Clitoris_inner_anatomyis the human female’s most sensitive erogenous zone and the primary source of female sexual pleasure. Clitoris and penis have generally the same anatomical structure, although the opening of the urethra is absent in the clitoris of humans and therefore not used for urination. In fact, during the fetal development the clitoris forms from the same tissues that become the penis in male. The visible button-like portion, called  glans (head),  near the front junction of the inner lips, above the opening of the urethra, is what people generally refers when talking about clitoris. The glans of the clit is roughly the size and shape of a pea, and has more sensory nerve endings than any other part of the female body, and for this it’s the key to female sexuality. A 2004 research says that its length ranges from 0.5 –3.5 cm. Instead, the whole clitoris is a complex structure, containing external and internal components:  glans, the frenulum clitoridis (a frenulum on the under-surface of the glans), the clitoral body or shaft (with the shaft being external and internal), the clitoral hood, two erectile bodies known as theVulva_labeled corpora cavernosa, two clitoral crura and the vestibular or clitoral bulbs. Although the glans is usually small, it can assume different shapes and sizes, with some woman in which it even appears as a small penis (clitoromegaly).
The clitoral body/internal shaft forms a wishbone-shaped structure containing the corpora cavernosa – a pair of sponge-like regions of erectile tissue which contain most of the blood in the clitoris during clitoral erection that usually happens during sexual arousal. The clitoris is rich in its capacity to receive sexual stimulation, which may be explored with a sexual partner or by masturbation. The sexual arousal coming through the clitoral stimulation brings the vaginal duct to lubricate and enlarge itself, predisposing it for a possible penis penetration. The most effective sexual stimulation of this organ is usually through direct stimulation by manual (fingering) or oral stimulation, although these areas may receive indirect physical stimulation during sexual activity (penile penetration), when man’s pubis rubbings and clitoromegaly.pushes also brings the clit to be stimulated someway. Penile-anal penetration may also indirectly stimulate the clitoris, either by the shared sensory nerves (especially the pudendal nerve or by the crura  extending beneath and along the labia minora back to the anus). Anyway, the direct stimulation gives back the highest pleasure, also if due to the glans’s high sensitivity, for a few women the direct stimulation becomes sometimes unfeasible. Usually, fingers that have been lubricated, either by vaginal lubrication or a personal lubricant, is  more pleasurable for the external anatomy of the clitoris. During sexual arousal, the vaginal contractions and the persistent vasocongestion eventually “set off a muscular reflex” which expels the blood that was trapped in surrounding tissues, and lead to an orgasm. And after fingering orgasm, unlike men, the clitoris even becomes more sensitive. The majority of women, 70 percent for general statistics, require direct clitoral stimulation to achieve a faster orgasm. The area near the entrance of the vagina (the lower third) contains nearly 90 percent of the vaginal nerve endings, and there are areas in the anterior vaginal wall and between the top junction of the labia minora and the urethra that are especially sensitive, but intense sexual pleasure and orgasm from vaginal stimulation is occasional because the vagina has significantly fewer nerve endings than the clitoris.

Opening of the vagina
orefice is the last visible part of the vulva, also if to see it often needs to keep open the labia. With it anatomically the vulva ends, and the vagina begins, i.e. the female sexual organs for reproductive purpose. This orifice is below and behind the opening of the urethra and its size varies inversely with that of the hymen. Undoubtedly, this orifice is the narrowest part of the vagina that wider as it goes in deeper through an average diameter that is less than one inch. Size changes when ready for intercourse and according to its size and elasticity, for some girls even inserting a tampon can be difficult, resulting a painful penile-penetration. 

INTERNAL PARTS: VAGINA
The female internal sexual and reproductive organs are:
Vagina
Hymen
Cervix
Uterus
Fallopian tubes
Ovaries

Let’s take a look at each of these parts now.

Vagina
anatomy_Vagina Vagina has insufficient nerve endings for sexual stimulation and orgasm, which is considered to make the process of child birth significantly less
vaginal ductpainful. The outer one-third of the vagina, especially near the opening, contains the majority of the vaginal nerve endings, making it more sensitive  Orgasm also known as sexual climax, is the sudden discharge of accumulated sexual tension during the sexual response cycle, resulting in rhythmic muscular contractions in the pelvic region characterized by an intense sensation of pleasure. Discussions of female orgasm are complicated by orgasms in women typically being divided into two categories: clitoral orgasm  Apart from the difficulty reaching orgasm after ample sexual penetrationstimulation (anorgasmia), significantly more common in women than in men, the amount of time for sexual arousal needed to reach orgasm is more variable and longer in women than in men. Masters and Johnson found that men took about 4 minutes to reach orgasm with orgasmtheir partners. Women took about 10–20 minutes to reach orgasm with their partners, but 4 minutes to reach Finally, the vagina also provides a path for menstrual blood and tissue to leave the body.


Hymen

Is a membranehymen_intactthat surrounds or partially covers the external vaginal opening. In children, at month 5 the vaginal canalization is complete and the fetal hymen is already formed although a common appearance of the hymen is crescent-shaped, many shapes are possible. At this age, the hymen is thick, pale pink, and redundant (folds in on itself and may protrude). By the time a girl reaches school age, the hymen becomes thin, smooth, delicate, and nearly translucent,intact & absent Hymen and can also become very sensitive to touch. Once a girl reaches puberty, the hymen tends to become very elastic. The effects of sexual intercourse and childbirth on the hymen are variable. If the hymen is sufficiently elastic, it may return to nearly its original condition. In other cases, there may be remnants, or it may appear completely absent after a penetration. The hymen may be lacerated by disease, injury, medical examination, masturbation or even physical exercise. For these reasons, it is not possible to definitively deflored_hymendetermine whether or not a girl or woman is a virgin (meaning no penile-penetration) by examining her hymen, given that  an intact hymen is socially highly valued to show virginity. Although  the hymen is usually flexible and can be torn during first engagement in vaginal intercourse, women can possess a thin very fragile hymens or a thick very tough one. In the first case, its laceration can lead no bleeding and without the girl even being aware of it. On the contrary, in some cases the break of the hymen is cause of abundant bleeding that can last long.  In one survey, only 43% of women reported bleeding the first time they had intercourse.

Cervix
cervix or the neck of the uterus, is the lower, narrow portion of the uterus where it joins with the top end of the vagina. It is cylindrical or conical in shape and protrudes through the upper anterior vaginal wall like an funnel, representing the end of the vaginal duct. Therefore, any long object or penis inserted, longer than vaginal’s duct, it will inexorably hit the cervix. The cervix has a very small opening to allow sperm or menstrual fluid to move through.

Uterus
uterus-of-human or womb, is a major female responsive reproductive sex organ. It is a pear-shaped muscular organ with the main function to accept a fertilized ovum (egg) which becomes implanted into the endometrium, then becoming later an embryo. In this case, the uterus provides for nourishment from blood vessels which develop exclusively for this purpose. In the absence of fertilization (by a spermatozoa), the egg does not embed
gestationin the wall of the uterus, and a female begins menstruation. If the ovum has been fertilize in the Fallopian tubes, it then becomes an embryo, attaches to a wall of the uterus, creates a placenta, and develops into a fetus (gestates) until childbirth. Due to anatomical barriers such as the pelvis, the uterus is pushed partially into the abdomen due to its expansion during pregnancy.

Fallopian tubes
Fallopian tubes
also known as oviducts, are two very fine tubes leading from the ovaries into the uterus that allows passage of the egg from the ovary to the uterus. On maturity of the ovum, the follicle and the ovary’s wall rupture, allowing the ovum to escape. The egg is caught by the fimbriated (fringelike) end and travels to the ampulla, where typically the sperm are met and fertilization occurs.  This second portion of the uterine tube is puffed-up and sunken to let sperms to be collected.The fertilized ovum, now a zygote, travels towards the uterus aided by activity of tubal cilia and activity of the tubal muscle. After about five days the new embryo enters the uterine cavity and implants about a day later.


Ovaries
ovary are two reproductive organs producing eggs (ovum) through a process called ovulation. For this reason, ovary can be considered analogous to testes in male individuals. The ovary (for a given side) is about the size and shape of an almond and located in the lateral wall of the pelvis which it is connected. Every month during ovulation, either the right or left ovary produces a single mature egg for fertilization. The ovum is one of the largest cells in the human body measuring approximately 0.12 mm in diameter. The few days near ovulation constitute the fertile phase for women. After ovulation, the egg only lives

ovum

for 24 hours or less without fertilization.  If no conception occurs, the uterine lining as well as egg and blood will be shed in menstruation (during menstrual cycle or period). In industrial societies, tampons, menstrual cups and sanitary napkins may be used to absorb or capture these fluids. Menstruation starts (with menarche) at or before sexual maturity (puberty) and ceases at or near menopause (commonly considered the end of a female’s reproductive life when ovary’s follicles stop producing ovum).

Male Genitals

EXTERNAL PARTS:
Male Tanne Stages
pubic region
penis
scrotum


Let’s take a look at each of these parts now.
Pubic region
Pubic Hair similar to female mons pubis, is located on and around the sex organs (crotch) which in male, though has no intrinsic sexual value, is considered an erotic zone, especially if covered with hair. In fact, it’s one of the most hairy male’s body part that start during puberty (pubarche).  Aside from the head, scientists’ common explanation on such a large development of hair (long and sparse) in this area, is to control the temperature which, especially for the testicles, should be less than that of the body.

Penis
is a reproductive organ that additionally serves as the urinal duct. It’s a intricate organ whose external part are:
shaft (body or corpus)
foreskin and shaft skin (epithelium)
glans
corona
urethra  orifice (meatus)


SHAFT
Different shaft/glans shapes The body is a fleshy appendix without internal bone, whose most part is inside the pubic region, and covered with cutaneous skin which from abdomen then differentiates along in foreskin and glans’s skin. It is devoid of hair having no hair follicles.  On the ventral underside of the shaft is visible a line or ridge of tissue that extends from the anus, through thperineal raphe e scrotum and till foreskin which is called perineal raphe.
On entering puberty, the penis, scrotum and  testicles will begin to develop. During the process, pubic hair grows above and around the penis. A large-scale study assessing penis size in thousands of 16–18 year old males found no difference in average penis size between 17 year olds and 19 year olds. From this, it can be concluded that penile growth is typically complete not later than age 17, and possibly earlier.
The variability in size due to arousal level, time of day, temperature, frequency of sexual activity, and reliability of measurement, gives back a childhood difficult measurement of the penis and thus we only can talk about average sizes. Besides, the size of the penis when in “normal” (flaccid, relaxed or non-tumescent) state is still more variable since the penis and scrotum can contract involuntarily in reaction to cold temperatures or nervousness. Anyway, a review of several studies found average flaccid length to be 8–10 cm (3.2–3.9 in) and a diameter of 3.2 cm (1.25 inches). Researchers conclude that flaccid penile puberty in progress length is just under 4 cm (1.6 in) at birth and changes very little until puberty when there is marked growth, apart a limited growth between birth and 5 years of age. It has been suggested that differences in penis size between individuals are caused mostly by genetics, though also environmental factors such as culture, diet, chemical/pollution exposure, can affect the size. The size during puberty internal morphology of the penis is made to produce erections, namely to bring the penis to increase in size and become a straight stiff appendix, for reproductive reasons.
Thus, an erection is the stiffening and rising of the penis, and this occurs during sexual arousal, though it can also happen in non-sexual situations. The primary physiological mechanism that Small Erect Penis brings about erection is the autonomic dilation of arteries supplying blood to the penis, which allows more blood to fill the three spongy erectile tissue chambers in the penis, causing it to lengthen and stiffen. The now-engorged erectile tissue presses against and constricts the veins that carry blood away from the penis. More blood enters than leaves the penis until an equilibrium is reached where an Big Erect Penis equal volume of blood flows into the dilated arteries and out of the constricted veins; so, a constant erectile size is achieved at this equilibrium. While results vary slightly across different studies, the consensus is that the average of fully erect penis ranges within 12,9 – 16 cm (5.1–  6.3 in) in length. Similar results exist regarding studies of the circumference of the adult fully erect penis, with the measurement taken mid-shaft. In three studies of penis size where measurements were taken in a laboratory setting, the range of average penis circumference when erect was 3.5 to 3.9 Process_of_penile_erection inches (8.9 to 9.9 centimetres).
When in erect state, the shaft usually tends to be thicker at the base becoming more thinned until the beginning of the “head”, a formation conical-shaped called the glans penis. Although many erect penises point straightly upwards, it is common and normal for the erect penis to point a little bit nearly vertically upwards or nearly vertically peyronies_disease downwards or even horizontally straight forward, all depending on the tension of the suspensory ligament that holds it in position. Anyhow, a curvature not bigger than 30° still can be considered normal. As the vulva, the erect penis may appear in different shapes, varying in diameter, length, bend, shape of the glans and body, where aside from size, is its body shape and the glans size to affect more.

FOSESKIN
Uncircumcised_and_circumcised_penis The skin covering the penis, very soft and supple, around the glans buy a different structure called foreskin or prepuce. As the most part of the shaft, the foreskin also is devoid of hair. It is a double-layered fold of skin and mucous membrane whose main purpose is to cover and protect the glans and the urinary meatus, when the penis is not erect,  but it is also an element co-operating during intercourse (penile-penetration), whose gliding movements (stretched-wrapped) helps arousal, adding comfort and pleasure of both parties. In fact, A_Foreskin_Retraction_Series foreskin is rich in specialized sensory nerve endings and erogenous tissue. The foreskin is (or should be) retractable over the glans. Like the eyelid, it is free to move after it separates from the glans, usually after birth or before puberty. Smooth muscle fibres keep it close to the glans but make it highly elastic. The foreskin is attached to the glans by a frenulum, which helps return the foreskin over the glans. This frenulum should be the right length to let prepuce go back and forth in an easy way. Many researchers believe that the presence of the foreskin made sexual penetration easier as an erogenous tissue necessary for normal sexual function. Well documented is the complex innervation of Short_foreskin the foreskin and frenulum, as the genitally intact male has thousands of fine touch receptors  (Meissner’s corpuscles) and other highly erogenous nerve endings giving back a sensory mucosa.
The preputial mucosa of the penis is the epithelium of the inside of the prepuce, or foreskin. To differentiate it from the cutaneous skin of the outside of the prepuce, it is sometimes referred to as the inner mucosa. It starts at the ridged band of the prepuce and continues to the coronal sulcus (groove behind the glans penis), where it meets the epithelium of the glans and penile shaft. In circumcised infants, the foreskin Long_foreskin no longer protects the meatal area of the glans; consequently, when wearing diapers, there may be greater risk of developing meatitis, meatal ulceration, and meatal stenosis. Finally, we must also consider that every part of our body, after thousands of years of evolution, has not been put there without a purpose and that it may not be unnecessary or superfluous. Foreskin length can vary from man to man with cases in which it is so short to hardly cover the glans or so abundant to fully cover the glans even during the erection. 

GLANS
well shaped glans is the sensitive bulbous structure at the distal end of the human penis. The glans penis is anatomically homologous to the clitoral glans of the female. The glans is also commonly referred to as the “head” of the penis, while common British slang terms include “helmet,” “knob end,” “popper” and “bell end”, all referring to its distinctive shape. It is generally completely or partially covered by the foreskin, except in men who have been fully circumcised. The circumference of the base of the glans forms a rounded projecting border, the corona glandis, overhanging a deep retro-glandular sulcus (the coronal Small glans due to phimosis sulcus), behind which is the neck of the penis. The proportional size of the glans penis can vary greatly. On some penises it is much wider in circumference than the shaft, giving the penis a mushroom-like appearance, and on others it is narrower and more akin to a probe in shape. The glans is the most sensory structure of the penis, containing a predominance of free nerve endings and numerous genital end bulbs. It has been suggested that the unique and unusual shape of the glans in humans has evolved to serve the function of “scooping” any remnant semen deposited by other rival males out of the deeper part of the vagina of a Corona_of_Glans_Penis female who may have recently copulated, and thereby decreasing the chance of the rival male from impregnating the female. Other theorists suggest that its distinctive shape evolved to heighten the sexual pleasure experienced by the female during vaginal intercourse. In this theory, the glans increases friction and tension at the mouth of the vagina by its additional girth and the dilating properties of its probe-like shape.

MEATUS
meatus At the summit of the glans is the slit-like vertical external urethral orifice.
In males, the expulsion of urine from the body is done through the male penis. The urethra drains the bladder through the prostate gland where it is joined by the ejaculatory duct, and then onward to the penis. At the root of the penis (the proximal end of the corpus spongiosum) lies the pissing external sphincter muscle. Relaxing the urethra sphincter allows the urine in the upper urethra to enter the penis proper and thus empty the urinary bladder. The part of the urethra in the penis has no muscles, and this serves no physiological function beyond that of a duct. Small amounts of urine usually remaining in the distal portion of the urethra, seeping out after the voluntary expulsion of urine is over.

SCROTUM
scrotum the scrotum is a dual-chambered protuberance of skin and muscle, containing the testicles (numerous nerves and blood vessels) and divided by a septum. The scrotum is homologous to the labia majora in females. It looks like a sack hanging behind the penis and between the legs, both sides with two oval balls inside and that becomes covered withScrotal_tightness_and_testicular_elevation pubic hairs at puberty. The function of the scrotum appears to be to keep the temperature of the testes slightly lower than that of the rest of the body. For human beings, the scrotum temperature should be undescended testicles in a boy about 35-36 degrees Celsius (95-96.8 degrees Fahrenheit) , i.e. one to two degrees Celsius below the accepted normal body temperature of 37 degrees Celsius (98.6 degrees Fahrenheit). Higher temperatures may be damaging to sperm count. According to other authors, the testicles are not directly attached to the skin of the scrotum or Hidden_testicles inside, to keep them outside the abdominal cavity where they would be subjected to the regular changes in abdominal pressure. While an alternative big and small scrotum explanation is to protect the testes from jolts and compressions associated with an active lifestyle. During times of lower temperatures, the “Cremaster muscle” contracts and pulls the scrotum closer to the body, while the “Dartos muscle” gives it a wrinkled Testicle_and_epididymis appearance; when the temperature increases, the Cremaster and Dartos muscles relaxes to bring down the scrotum away from the body and remove the wrinkles respectively. The scrotum remains connected with the abdomen or pelvic cavity by the inguinal canal, where at birth (or later before puberty) the testes go cross to reach the sack.

INTERNAL PARTS OF THE PENIS.


male sex organs The human penis is made up of three columns of tissue: two corpora cavernosa lie next to each other on the dorsal side and one corpus spongiosum lies between them on the ventral side, and the urethra.
The corpus cavernosum penis is one of a pair of sponge-like regions of erectile tissue which contain most of the blood in the penis during penile erection. Erectile tissue is tissue in the body with numerous vascular spaces that may become engorged with blood.
Corpus spongiosum is the mass of spongy tissue surrounding the male penis anatomy urethra in a smaller region along the bottom of the penis. The enlarged and bulbous-shaped end of the corpus spongiosum forms the glans penis, which supports the foreskin. The function of the corpus spongiosum in erection is to prevent the urethra from pinching closed, thereby maintaining the urethra as a viable channel for ejaculation. To do this, the corpus spongiosum remains pliable during erection while the corpora cavernosum penis becomes engorged with blood.
Corpus spongiosum The urethra, which is the last part of the urinary tract, traverses the corpus spongiosum, and its opening, known as the meatus, lies on the tip of the glans penis. It is a passage both for urine and for the ejaculation of semen. During ejaculation, sperm are propelled up the vas deferens, two ducts that pass over and behind the bladder. Fluids are added by the seminal vesicles and the vas deferens turns into the ejaculatory ducts, which join the urethra inside the prostate gland, and the semen is penis structure expelled through the penis. The distal section of the urethra (thanks to penis) does however allow a human male to direct the stream of urine by holding the penis. In cultures where more than a minimum of clothing is worn, the penis allows the male to urinate while standing and orientate the flow.

INTERNAL PART OF SCROTUM
Epididymis
Epididymisis part of the male reproductive system and is a single, narrow, tightly-coiled tube (in adult humans, six to seven meters in length) connecting the efferent ducts from the rear of each testicle to its vas deferens. The epididymis is a whitish mass of tightly coiled tubes cupped against the testicles. It acts as a maturation and storage place for sperm before they pass into the vas deferens, tubes that carry sperm to the ampullary gland and prostatic ducts. Spermatozoa formed in the testis enter the head of epididymis, progress to the corpus, and finally reach the lower region (tail), where they are stored. Sperm entering the epididymis are incomplete – they lack the ability to swim forward (motility) and to fertilize an egg. It stores the sperm for 2–3 months. During their transit in the epididymis, sperm undergo maturation processes necessary for them to acquire these functions.
Vas deferens
scrotum anatomyalso known as the sperm duct, is a thin tube approximately 43 centimetres long that starts from the epididymis to the pelvic cavity and transport sperm from the epididymis in anticipation of ejaculation. There are two ducts, connecting the left and right epididymis to the ejaculatory ducts in order to move sperm. Each tube is about 30 centimeters long and is muscular, surrounded by smooth muscle that during ejaculation contracts reflexively propelling the sperm forward. The sperm is transferred from the vas deferens into the urethra, collecting secretions from the male accessory sex glands such as the seminal vesicles, prostate gland and the bulbourethral glands, which form the bulk of semen.
Accessory glands
are the seminal vesicles, prostate gland, and the bulbourethral glands (Cowper glands).
Three accessory glands provide fluids that lubricate the duct system and nourish the sperm cells.
Seminal vesicles
or vesicular glands are a pair of simple tubular glands posteroinferior to the urinary bladder located within the pelvis. Seminal vesicles are sac-like structures attached to the vas deferens at one side of the bladder. They produce a sticky, yellowish fluid that contains fructose. This fluid provides sperm cells energy and aids in their motility. 70% of the semen is its secretion.
Prostate gland
prostateThe function of the prostate is to secrete a slightly alkaline fluid, milky or white in appearance, that usually constitutes 50–75% of the volume of the semen along with spermatozoa and seminal vesicle fluid. The alkalinity of semen helps neutralize the acidity of the vaginal tract, prolonging the lifespan of sperm. The prostate gland surrounds the ejaculatory ducts at the base of the urethra, just below the bladder and is responsible for the production of semen, a liquid mixture of sperm cells, prostate fluid and seminal fluid. This gland is also responsible for making the semen milky in Prostateappearance by mixing calcium to the semen coming from seminal vesicle (semen coming from the seminal vesicle is transparent in color).
Bulbourethral glands
The bulbourethral glands, also called Cowper glands, are two small exocrine glands present located on the sides of the urethra just below the prostate gland. These glands produce a clear, slippery fluid that empties directly the urethra. During sexual arousal each gland produces a clear, salty, viscous secretion known as pre-ejaculate (pre-cum). This fluid helps to lubricate the urethra for spermatozoa to pass through, neutralizing traces of acidic urine in the urethra.
Testiscle or testis
testicles anatomyThe gonad is the organ that makes gametes. The gonads in males are the testes and the gonads in females are the ovaries. The primary functions of the testes are to produce sperm (spermatogenesis) and to produce androgens, primarily testosterone. It is most common for one testicle to hang lower than the other. While the size of the testicle varies, it is estimated that 21.9% of men have their higher testicle on left side, due to differences in the vascular anatomical structure on the right and left sides. The average testicle size after puberty measures up to around 2 inches long, 0.8 inches in breadth, and 1.2 inches in height (5 x 2 x 3 cm). Each testicle contains very fine coiled tubes called seminiferous tubules. The tubules are lined with a layer of cells (germ cells) that from puberty into old age, develop into sperm cells (also known as spermatozoa or male gametes). The developing sperm travel through the seminiferous tubules to the rete testis to the efferent ducts, and then to testis_structurethe epididymis where newly created sperm cells mature (spermatogenesis). The sperm move into the vas deferens, and are eventually expelled through the urethra and out of the urethral orifice through muscular contractions, called ejaculation (cum).
The term sperm (meaning “seed”) refers to the male reproductive cells. A uniflagellar sperm cell that is motile is referred to as a spermatozoon, whereas a non-motile sperm cell is referred to as a spermatium. The initial spermatozoon process takes around 70 days to complete. The spermatid stage is where the sperm develops the familiar tail. The next stage where it becomes fully mature takes around 60 days when it’s called a spermatozoan. Sperm cells are testis carried out of the male body in a fluid known as semen.  Sperm cells consists of a head 5 µm (micrometer) by 3 µm and a tail 50 µm long (1 micrometer is 1×10−6 of a metre, about 0.000039 inches). Human sperm cells can survive within the female reproductive tract for more than 5 days post coitus. Sperm quantity and quality are the main parameters in semen quality, which is a measure of the ability of semen to accomplish fertilization. Thus, in humans, it is a measure of fertility in a man. A semen analysis typically measures the number of sperm per milliliter of ejaculate, and analyzes the morphology (shape) and motility (ability to swim forward) of the sperm (the typical ejaculate of a healthy, physically mature young Ejaculation_educational_seq_4adult male of reproductive age with no fertility-related problems usually contains 300-500 million spermatozoa. The genetic quality of sperm, as well as its volume and motility, all typically decrease with age. The human sperm cell is haploid, so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell (zygote), and transmit our genetic characteristics. In mammals, the sex of the offspring is determined by the male sperm cell: a spermatozoon bearing a Y chromosome will lead Complete_diagram_of_a_human_spermatozoato a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring—the X chromosome. Unlike women, male gonad never stop to produce sperm, though decreasing with age. The force and amount of semen that will be ejected during an ejaculation will vary widely between men and may contain between 0.1 and 10 milliliters, though volume is affected by the time that Pre-ejaculatehas passed since the previous ejaculation.
The first ejaculation in males often occurs about 12 months after the onset of puberty, generally through masturbation or nocturnal emission (wet dreams). The typical ejaculation over the following three months produces less than 1 ml of semen. The semen produced during early puberty is also typically clear. After ejaculation this early semen remains jellylike and, unlike semen from mature males, fails to liquify. [The liquefaction is the process when the gel formed by proteins from the seminal vesicles is broken up and the semen becomes more liquid. It normally takes less than 20 minutes for the sample to change from a thick gel into a liquid. fertilizationA liquefaction time within 60 minutes is regarded as within normal ranges].  Most first ejaculations (90 percent) lack sperm. Of the few early ejaculations that do contain sperm, the majority of sperm (97%) lack motion. The remaining sperm (3%) have abnormal motion. As the male proceeds through puberty, the semen develops mature characteristics with increasing quantities of normal sperm. Semen produced 12 to 14 months after the first ejaculation liquifies after a short period of time. Within 24 months of the first ejaculation, the semen volume and the quantity and characteristics of the sperm match that of adult male semen.
.

References: most of the content is from wikipedia.org