Ampulla of vas deferens

Ampulla of Vas Deferens

The Ampulla of Vas Deferens is an important part of the male reproductive system. It is an enlarged portion of the vas deferens, a tube that carries sperm from the epididymis to the ejaculatory ducts.

Anatomy

The ampulla of vas deferens is located at the terminal part of the vas deferens, just before it joins the seminal vesicle to form the ejaculatory duct. It is typically larger in diameter than the rest of the vas deferens and is responsible for storing sperm prior to ejaculation.

Function

The primary function of the ampulla of vas deferens is to serve as a storage and maturation site for sperm. During ejaculation, the smooth muscle in the wall of the ampulla contracts, propelling the sperm forward into the ejaculatory ducts and eventually into the urethra for expulsion.

Clinical Significance

The ampulla of vas deferens can be affected by various medical conditions. For instance, it can become blocked, leading to male infertility. This can occur as a result of infection, trauma, or congenital defects. In addition, the ampulla is often the site of a vasectomy, a surgical procedure for male sterilization or permanent contraception.

See Also

• Vas Deferens
• Male Reproductive System
• Ejaculation
• Vasectomy

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