In: Anatomy and Physiology
Write an essay about the male’s sexual response and describe one clinical case of your choice related to it.
Answer :
The male sexual response includes erection and orgasm accompanied by ejaculation of semen. Orgasm is followed by a variable time period during which it is not possible to achieve another erection.
Three hormones are the principle regulators of the male reproductive system: follicle-stimulating hormone (FSH) stimulates spermatogenesis; luteinizing hormone (LH) stimulates the production of testosterone; and testosterone stimulates the development of male secondary sex characteristics and spermatogenesis.
The sexual response cycle refers to the sequence of physical and emotional changes that occur as a person becomes sexually aroused and participates in sexually stimulating activities, including intercourse and masturbation. Knowing how your body responds during each phase of the cycle can enhance your relationship and help you pinpoint the cause of any sexual problems.
Sexual Response Cycle:
The sexual response cycle has four phases: excitement, plateau, orgasm, and resolution. it is unlikely that both partners will reach orgasm at the same time. In addition, the intensity of the response and the time spent in each phase varies from person to person. Understanding these differences may help partners better understand one another's bodies and responses, and enhance the sexual experience.
Phase 1: Excitement
General characteristics of the excitement phase, which can last from a few minutes to several hours, include the following:
Muscle tension increases.
Heart rate quickens and breathing is accelerated.
Skin may become flushed (blotches of redness appear on the chest and back).
Nipples become hardened or erect.
Blood flow to the genitals increases.
The man's testicles swell, his tightens, and he begins secreting a lubricating liquid.
Phase 2: Plateau
General characteristics of the plateau phase, which extends to the brink of orgasm, include the following:
The changes begun in phase 1 are intensified.
The man's testicles are withdrawn up into the skin.
Breathing, heart rate, and blood pressure continue to increase.
Muscle spasms may begin in the feet, face, and hands.
Muscle tension increases.
Phase 3: Orgasm
The orgasm is the climax of the sexual response cycle. It is the shortest of the phases and generally lasts only a few seconds. General characteristics of this phase include the following:
Involuntary muscle contractions begin.
Blood pressure, heart rate, and breathing are at their highest rates, with a rapid intake of oxygen.
Muscles in the feet spasm.
There is a sudden, forceful release of sexual tension.
rhythmic contractions of the muscles at the base of the male genital result in the ejaculation of semen.
A rash, or "sex flush" may appear over the entire body.
Phase 4: Resolution
During resolution, the body slowly returns to its normal level of functioning, and swelled and erect body parts return to their previous size and color. This phase is marked by a general sense of well-being, enhanced intimacy and, often, fatigue. Some women are capable of a rapid return to the orgasm phase with further sexual stimulation and may experience multiple orgasms. Men need recovery time after orgasm, called a refractory period, during which they cannot reach orgasm again. The duration of the refractory period varies among men and usually lengthens with advancing age.