List the four stages of sexual response and the characterist

List the four stages of sexual response, and the characteristics and events of each

Solution

The sexual response cycle has four phases: excitement, plateau, orgasm, and resolution.

Phase 1: Excitement

General characteristics of the excitement phase, which can last from a few minutes to several hours, include Muscle tension increases. Heart rate quickens and breathing is accelerated. Nipples become hardened. Blood flow to the genitals increases. The man\'s testicles swell, 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 phase is characterized by an increased circulation and heart rate in both sexes, increased sexual pleasure with increased stimulation, and further increased muscle tension. Also, respiration continues at an elevated level. 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

Orgasm is the conclusion of the plateau phase of the sexual response cycle and is experienced by both males and females. 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. There is a sudden, forceful release of sexual tension. In women, the muscles of the contract. The uterus also undergoes rhythmic contractions. In men, rhythmic contractions of the muscles result in the ejaculation of semen.

Phase 4: Resolution

The resolution phase occurs after orgasm and allows the muscles to relax, blood pressure to drop and the body to slow down from its excited state. 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.. Men need recovery time after orgasm, called a refractory period, during which they cannot reach orgasm again.