The function of the testicles, which you should be aware honest with yourself first.

Testicles are a part of the male reproductive organ, its main function is to produce sperm and the male sex hormone.
Testicular testicles are in the envelope, which is located between the penis and anus. Adult testicle is similar to the olive fruit, and it is common for one testicle seems to be lower than the other testicle. On the back of each testicle tube from Didymus, a pipeline and storage functions of semen travels. Match each of the blood vessels, nerve and lymph system tubes of semen from the abdomen and is connected to each testicle.
Source: Health.com.kh
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