Action in male organ sex

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Urol Clin North Am. The pelvic plexus is located retroperitoneally on either side of the rectum, lateral and posterior to the seminal vesicle In the first phase, the vas deferens the tubes that store and transport sperm from the testes contract to squeeze the sperm toward the base of the penis and the prostate gland and seminal vesicles release secretions to make semen. Tia has interned at Science News, Wired. This, in addition to the identification of spinal generator for ejaculation SGE in rats, led to the postulation that the process of expulsion is a continuum of the process initiated through emission, after reaching a certain spinal activation threshold 30

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Both organs are rarely fully functional, and the condition often comes along with other anomalies in the genital area that require surgery to correct.

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Erection Ejaculation: How It Occurs

This countdown was first published Aug. The exact trigger for expulsion is unknown. In addition, we describe the neurochemical and hormonal regulation of the ejaculation process. Masters W, Johnson V. The entire male reproductive system is dependent on hormones, which are chemicals that stimulate or regulate the activity of cells or organs. It also contains numerous nerves and blood vessels.

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