The vas deferens are thin muscular tubes that carry sperm from each testicle to the seminal vesicles and then the urethra.
Reviewed last on: 1/24/2008
Marc A. Greenstein, D.O., F.A.C.O.S. Urologist, Somerset Medical Center in Somerville, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.