Secret of man's pleasant sensation

Secret of man's pleasant sensation
Ketone of testis is main man's hormone, this kind of hormone impels the development of genitals, produce erecting and sexual behavior, the second sex character, for instance the sound thickens, the function that it is this kind of hormone that the beard grows etc.. The testis secretes a large number of testis ketone. The renal gland above kidney, no matter men and women will all secrete testis ketone of small quantity very much. Depending on the mound underpart is controlling the secretion of hormone, when testis ketone level drops of the brain, looking at the mound underpart will send out signals to the hypophysis of the brain bottom, the pituitary will be sent to the hormone envoy through the blood flow, tell the testis to secrete with higher speed. Male the intersection of hormone and horizontal range change greatly, but most male testis ketone circulation many than requirement of them. The poor men of a testis ketone, may meet the difficulty while erecting and keeping the state of erecting, and lose sexual desire. In healthy men, the hormone question is extremely rare, the question that a common one caused by the fact that anxious can't erect. Can't erect medical reason of question include blood vessel and neural question in the pelvis. When the brain conveys a signal and process of erecting to cross the nerve of the pelvis along the spinal, erecting will happen. Covered with some important nerve the prostate. When passing the nervous system in signal erecting, the sponge tissue in the penis will be relaxed, sending the blood to the artery blood vessel of the penis will be expanded, with the extension of the blood vessel wall, the blood flows in by the speed of higher than 50 times at ordinary timesing, is full of body of sponge in both sides, responsible for arranging the blood vessel of the liquid of bleeding usuallying the penis, but slow down this course now, blood pressure in the penis rises suddenly, the strong erection phenomenon appears. When the penis is in friction, make, control the nerve of the blood flow irritate, the man will have pleasant sensation at this time. Even if because the nerve or blood vessel stops up,etc. the question is unable to erect, the man will reach the climax from realizing in friction to pleasant sensation. The male ejaculation of third nervous control, it is the second step in a climax to ejaculate. A male climax is two steps. The first step is launched, prostate, seminal vesicle, the spermatic duct cooperates, sperm cells making the testis produce are mixed with seminal fluid, the seminal fluid is a kind of white and liquid rich in protein produced by prostate and seminal vesicle, make sperm's cells survive. This mixture is stored on the urethral top, wait to launch. When already penetrating, men will feel the climax is coming. The climax is controlled by the sympathetic nerve. The second step is to ejaculate, it is the same to control nerve and male vulva that ejaculate to be stroked and produce the nerve of the pleasant sensation signal, the nerve causes penis root muscles to have rhythm to crowd and contract, shoot the seminal fluid through the urethra, meanwhile, the information of pleasant sensation reaches the brain, pleasant sensation is thereupon production.

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