THE HUMAN SEXUAL RESPONSE – PHISICAL REACTIONS 3 (SECOND PHASE)
The second phase of orgasm quickly follows the first. The muscles which surround and support the urethra and the base of the penis begin to contract in a rhythmic, regular, co-ordinated way forcing the seminal fluid, under considerable pressure, along the urethra until it is ejected from the eye of the penis. The pressure is such that the ejaculated seminal fluid may spurt a distance of 25 to 50 centimetres (1 о to 20 inches) from the penis. At the same time the whole of the man’s pelvic muscles and those of his abdomen and buttocks contract rhythmically. The stretching of the man’s urethra, the rhythmic contraction of its surrounding muscles, and the expulsion of the seminal fluid along the urethra are interpreted in his brain as the pleasurable response of orgasm. The first two or three contractions of the pelvic muscles are strongest and it is at this time that the pleasure of the orgasm is the greatest. As they occur at intervals of 0.8 seconds, the maximum duration of intense pleasure is 2 seconds. The later contractions of the muscles surrounding the deep urethra are less strong and are associated with less pleasure. They rarely last for more than 2 seconds.
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Posted in Men's Health-Erectile DysfunctionTags: Men’s Health
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