Assignment - the Sexual Response Cycle

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The sexual response cycle is the term used to describe the changes that occur in the body when men and women become sexually aroused. There are four stages or phases. The sexual response cycle consists of vasocongestion and myotonia. Vasocongestion causes erection in the male and swelling of the area surrounding the vaginal opening. As blood vessels dilate the testes, nipples and earlobes swell. Muscle tension is called myotonia. It consists of facial grimaces, spasms in the hands and feet, and spasms of orgasm. During the excitement phase vasocongestion can cause an erection in young men in as little as 3 to 8 seconds after sexual stimulation starts. The testes become larger and elevated, and the scrotal skin also thickens making it less baggy. For the female during the excitement phase vaginal lubrication can start 10 to 30 seconds after sexual stimulation begins. Vasocongestion causes the clitoris to swell and flattens and spreads the vaginal lips. The breast become bigger and blood vessels nearer the surface are more visible. The inner two-thirds of the vagina expands. The vaginal walls thicken and turn a deeper color. The woman’s skin can take on a rosy sex flush. The commonalities for both men and women during the excitement phase are that their nipples can become erect. Their heart rate and blood pressure increase. Muscle tension also increases. Although the skin can take on a rosy flush for both it is more common for women. In the plateau phase sexual arousal remains somewhat stable. Men show some increase in the circumference of the head of the penis and it takes on a purplish hue due to vasocongestion. The testes become elevated and positioned for ejaculation. The penis may become one and a half times its arousal size. The penis may release drops of semen from the opening before ejaculation. During the plateau phase for women the outer part of their vagina swells due to vasocongestion. This contracts the vaginal opening in...
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