In a man the sexual organs are mostly outside the body and include the penis, testes and prostate gland. The end of the penis is covered by the foreskin, unless the man has had it removed by circumcision. The ridge on the underside of the head, called the frenulum, is usually the most sensitive part of a man’s penis. At the very top of the penis is a slit opening to the urethra, through which semen and urine are passed. At the base of the penis is a bag formed by wrinkly skin called the scrotum. Inside this bag lie the testicles (or balls). These produce sperm which is then passed through tubes (vas deferens) to mix with other fluids to make semen. The other parts of a man’s sex organs lie inside his body. The prostate gland lies deep in the pelvis and surrounds the first part of the urinary tube, the urethra, as it leaves the bladder. The prostate gland produces a fluid that mixes with the sperm to form semen and helps create the intense sensations a man experiences when he has an orgasm.
The male sex organs
The penis, testicles and anus are erogenous zones. A man’s chest and nipples can also be sensitive and his body may have other erogenous zones. Plateau is the phase where the body maintains a heightened state of arousal. The body is very sensitive during this phase. Orgasm is the sexual climax and the feelings of intense sensation that occur as areas of the body go into a series of rhythmic contractions. Some women can feel the uterus contract. Men ejaculate semen, unless they have had surgery (vasectomy) that affects the production of sperm. Resolution is the phase that follows sexual arousal and orgasm. This is when the sexual changes in the body return to normal. Men cannot usually be excited again for a while. However, many women are capable of being aroused to orgasm again straight away. As people get older, they tend to lose the ability to become sexually excited repeatedly.
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