A MAN’S SEX ORGANS: THE PENIS
There is no organ about which more myths have been perpetrated than the penis. It has been praised, blamed and misrepresented in art, literature and legend since time immemorial. These phallic fallacies have become firmly fixed in our culture, thereby influencing our attitudes and behaviour.
The penis has two functions — the passing of urine and the depositing of semen in the vagina — but it is the role of the penis as the organ responsible for orgasm in both men and women that has achieved mythical status.
Although they vary in length, the average penis measures 9-5 centimetres (3 ¾ inches) in its flaccid state. It is composed of erectile tissue arranged in three cylindrical columns. The column underneath expands at the end of the penis to form the glans. Through the centre of this column runs the urethra, a narrow tube carrying semen (and urine) out of the body through an opening at the tip of the glans. When a man has an erection, and for a few minutes after he has ejaculated, the urethra becomes compressed so that he can’t urinate, although semen can get through.
The expanded glans is demarcated from the main shaft of the penis by an indentation that runs around its head, and the skin on the shaft of the penis forms a fold (the foreskin) that extends to cover the glans. On its lower side, the fold is tethered to the inner surface of the glans by the frenulum. For many men, this tiny band of skin is their most sensitive part and, if stimulated, may quickly arouse them.
At birth, the foreskin is attached to the glans; starting in infancy, it gradually separates. The foreskin may be removed by circumcision. There is no truth in the notion that an uncircumcised man can control ejaculation more effectively than a man who is circumcised. This myth is founded on the widespread misconception that the glans of the circumcised penis is more sensitive to touch than the glans covered most of the time by a foreskin. During intercourse, the foreskin retracts exposing the glans exactly as for a circumcised glans.
The skin of the penis is thin, stretchy, without fat and loosely attached to the underlying tissues. The penis is richly supplied with sensory nerves and nerves from the autonomic nervous system.
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Posted in Men's Health-Erectile DysfunctionTags: Men’s Health
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