The Anatomy Of The Penis

What Makes A Man?
A man is not defined by the role he plays with his significant other, because if you are not a man as you stand on your own, then even with that person you never truly were a man. * A man faces his problems and deals with issues straightforward, that is why so often it is referred to as “to man up.” No one is perfect and I can admit where I have stumbled and in some cases fallen, but as long as you continue to strive for such is what in the end really makes you a man. Point being, “The difference between men and boys are the lessons they learn.” 3 If all else fails or if we fail individually we must take these lessons and apply them.

I use significant other instead of woman because sexuality does not limit or define you as being or not being a man.

penis, anatomy, picture, diagram, image, function, parts, problems, conditionsThe skin of the penis
is hairless, thin, elastic and very sensitive, particularly so on the upper- and undersides. In uncircumcised men it fits loosely over the shaft and slips back and forth during sexual activity. When it is pulled back it reveals the glans or tip of the penis, which is generally cone-shaped, at the base of which there is a ridge known as the corona. The glans is the most sensitive part of the phallus, richly endowed with nerve-endings, and it is highly responsive to stimulation during sexual foreplay.
At birth the glans of the penis is covered by a foreskin, which in some societies is routinely removed by circumcision. Some people believe that circumcision enhances sexual pleasure, but in fact there is no evidence that there is a difference in sensitivity between the circumcised and the uncircumcised penis. The only possible disadvantage of non-circumcision might be that as the foreskin traps dirt, uncircumcised men should be particularly scrupulous about their genital hygiene. They should regularly push the foreskin back and wash the glans and corona with warm water.
After the penis, the testicles are the main focus of male anxiety and misplaced pride. The testicles are extremely vulnerable and sensitive, in fact too much so to be organs of pleasure. The author of The Sensuous Woman (1970) urges her readers to give their men a wonderful thrill by gently taking a testicle into the mouth like an egg. This is a practice we would recommend only if you trust your partner, otherwise any thrill conferred by the novelty of the experience may be cancelled out by the reflex anxiety it induced.
The testicles are sex glands whose function is to manufacture sperm.
They vary in size, but any exceptionally large one usually has more fluid. Testicle size is not related to the number of sperm produced.

It is normal for one testicle to be a little smaller than the other, and it is also normal for one (usually the left) to hang lower than the other, two common factors that still cause anxiety. Men are sometimes alarmed, too, to find that they appear to have only one testicle, when in fact what has happened is that one has retreated into the canal that leads to the abdomen. This canal serves as a kind of refuge for the very vulnerable glands. They get drawn up toward it, for example, when a man wades into cold water, or when any kind of danger threatens, and also during sexual arousal. A very small number of males have an undescended testicle, one that has not descended to the scrotum but remained in the abdominal canal. This condition can be corrected surgically, preferably at an early age.
The reason why the testicles are outside the body is that they need to be a little below body temperature in order to produce sperm efficiently.
This is also why the sac that encloses them, the scrotum, is made of deeply wrinkled skin. When the temperature is too high, the wrinkles smooth out in order to lose heat, and if it gets too cold they close up. This is why the scrotum becomes tight and shriveled if one plunges into cold water.
When sperm cells have been manufactured in the testes they pass up two long narrow canals known as the vas deferens to the prostate gland, where the seminal fluid is produced. Seminal fluid forms the greater part of the fluid ejaculated by the man during his orgasm in sexual intercourse, and its purpose is to preserve and nourish the sperm, and provide a fluid medium in which they can move. The prostate lies just behind the bladder and ducts lead from both these points into the urethra, or urinary passage. Although this passage is used for passing urine as well as semen, the two functions are never confused because a man cannot urinate when he has an erection.
In the forward part of the urethra there are some small glands known as Cowper’s glands which secrete a thick slippery substance during sexual arousal. This substance has the dual purpose of counteracting the acidity of any residue of urine present in the urethra since this could be harmful to sperm, and at the same time providing a lubricant to facilitate sexual intercourse. M any men who notice its
appearance on the glans of the penis during sexual arousal mistake it for a premature seepage of semen. Interestingly, this secretion occurs as a result of emotional or mental as opposed to mechanical sexual stimulation. It may not occur at all during an act of masturbation, but a man who is mentally aroused, may find that his Cowper’s glands have been busily secreting even though his penis has only just begun to stiffen.
Erectile Dysfunction: How an Erection Occurs
What Is the Penis?
The penis is the male sexual organ. It contains:
• Two cylinder-shaped chambers called the corpora cavernosa, which run the length of the penis and contain a maze of blood vessels and sinuses (cavities).
• The urethra, the channel in which urine and sperm flow, which runs along the underside of the corpora cavernosa.

• Erectile tissue, which is contained within the corpora cavernosa above the urethra, two main arteries and several veins and nerves.
• The shaft, the longest part of the penis.
• The head (glans), located at the end of the shaft.
• The meatus, the opening at the tip of the head where urine and semen are discharged.
The penis contains:
• Two chambers called the corpora cavernosa, which run the length of the organ and contain a maze of blood vessels shaped like cavernous spaces (like a sponge)
• The urethra, or channel for urine and sperm, which runs along the underside of the corpora cavernosa
• Erectile tissue, which surrounds the urethra, two main arteries and several veins and nerves
• The shaft, the longest part of the penis
• The head (glans), which is at the end of the shaft
• The meatus, or opening at the tip of the head where urine and semen are discharged.
How does an erection occur?
penis, anatomy, picture, diagram, image, function, parts, problems, conditionsWhen the blood vessels of the corpora cavernosa relax and open up, blood rushes in through the cavernosus arteries to fill them. The blood then gets trapped under high pressure creating an erection.
An erection begins with sensory and mental stimulation. During sexual arousal, nerve messages begin to stimulate the penis. Impulses from the brain and local nerves cause the muscles of the corpora cavernosa to relax, allowing blood to flow in and fill the open spaces. The blood creates pressure in the corpora cavernosa, making the penis expand and creating an erection. The tunica albuginea (the membrane surrounding the corpora cavernosa ), helps to trap the blood in the corpora cavernosa, thereby sustaining erection. Erection is reversed when muscles in the penis contract, stopping the inflow of blood and opening outflow channels.
How does ejaculation occur?
Sexual stimulation and friction provide the impulses that are delivered to the spinal cord and into the brain. Ejaculation is a reflex action controlled by the central nervous system. It is triggered when the sexual act reaches a critical level of excitement. It has two phases. In the first phase, the vas deferens (the tubes that store and transport sperm from the testes) contract to squeeze the sperm toward the base of the penis and the prostate gland and seminal vesicles release secretions to make semen. At this stage, the ejaculation is unstoppable. In the second phase, muscles at the base of penis contract every 0.8 seconds and force the semen out of the penis in up to 5 spurts.
Vas Deferens
The erectile tissue (Corpora Cavernosa & Corpus Spongiosum) in the penis expands during sexual stimulation. This can either be visual, tactile, auditory, olfactory or imaginative. During sexual stimulation the arteries supplying the penis with blood dilate and large amounts of blood rush into the erectile tissue.
The blood then becomes trapped causing the penis to stay this way until ejaculation or until the male is no longer stimulated.
Epididymus
Epididymis is a structure which lies on and around each testicle. It functions in the transport, storage and maturation of sperm cells originating from the testicle. When a man complains of scrotal pain, acute or chronic epididymitis is far and away that most common diagnosis.
Acute epididymitis is usually more severe involving more significant swelling and pain than chronic epididymitis. Epididymitis which lasts more than six weeks is considered chronic epididymitis.
Testes
Testes are a large number of tightly packed coiled tubes. This is where sperm is produced. Sperm production takes about two months, but it’s a continuous cycle. A typical male produces several hundred million each day. This sperm production process is called Spermatogenesis. Sperm that is not ejaculated is then broken down and reabsorbed by the body.
Testes also contain cells that secrete the male sex hormone testosterone. Spermatozoa are among the smallest and most highly specialized cells in the body. All the genetic material that is transmitted from a father to its baby is found in each sperm head. The nucleus is covered by a specialized enzyme coating that enable the sperm to break down the covering of the egg and permit entry should contact occur. Each sperm has a mid-piece and an elongated tail that helps it swim in its quest to fertilize the closest female egg.
Scrotum
The scrotum is a pouch-like sac that hangs on the external part of the body cavity behind the penis. This is where the testicles are contained. This location provides the correct temperature for the sperm to be produced.