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Penis
...  fibrous tissue placed within the skin. The corpora cavernosa of the penis are two equal dorsal masses. Two major states of the penis are flaccid and engorged depending on nerve function including sexual arousal. In the flaccid pendant position the penis is rather vulnerable. The area of the penis is extremely sensitive. Any pain caused to it cripples the male for a while. At the same time the  ...

Spermatozoa
...  spermatozoa or sperm cells in the testes. The epididymis serves as the storage area of the sperm cells. With the help of the sertoli cells in the seminiferous tubules, the sperm cells mature. Upon sexual arousal, the penis becomes tumescent because of engorged blood vessels and ejaculation occurs. Substances in semen The mature spermatozoa are then delivered to the urethra by the vas deferens.  ...

Arteries of the Pelvis
...  pudental artery, which branches off the internal iliac artery. The internal iliac artery is also primarily responsible for the excessive demand in blood supply of the external genitalia during sexual arousal. The internal iliac artery serves several muscles in the pelvic region, as it is also primarily responsible for the premium muscles. Just outside the pelvic cavity is the external  ...

Bulbourethral Glands
...  a two and a half centimeter tube to the urethra. This part of the male sexual organ is intended to release an enzyme to the urethra to neutralize the level of pH of the urine for the response to sexual arousal. This way, the penis becomes cleansed and prevents the sperm’s early death during ejaculation and lubricates the penis before any sexual activity.  ...


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