Vas Deferens

 Begin Learning with Healthy Advice:
Men's Health



Vas Deferens Definition by Healthwise:

Vas deferens

The vas deferens is a narrow, muscular tube that connects the testicles (where sperm is produced) to the urethra. During ejaculation, the sperm flows out of the testicles, through the vas deferens, and into the tube (urethra) that leads outside the body through the penis.

Several glands, such as the prostate gland, add fluid to the sperm along the way.

Author: Bets Davis, MFA
Medical Review: Joy Melnikow, MD, MPH - Family Medicine
Kirtly Jones, MD - Obstetrics and Gynecology
Last Updated: May 22, 2008

healthwise logo © 1995-2012 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

This information does not replace the advice of a doctor. Healthwise discalims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use.