vas deferens

vas deferens

vas deferens The tube on each side which leads from the testis to the urethra, carrying sperm and some other components of seminal fluid. Each vas ends by joining the duct of a seminal vesicle, to enter the urethra (the urinary passage) where that traverses the prostate gland. May be closed off by the operation of vasectomy, preventing sperm from entering the ejaculate.

Stuart Judge


See urogenital system.
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COLIN BLAKEMORE and SHELIA JENNETT. "vas deferens." The Oxford Companion to the Body. 2001. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

COLIN BLAKEMORE and SHELIA JENNETT. "vas deferens." The Oxford Companion to the Body. 2001. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O128-vasdeferens.html

COLIN BLAKEMORE and SHELIA JENNETT. "vas deferens." The Oxford Companion to the Body. 2001. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O128-vasdeferens.html

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vas deferens

vas de·fe·rens / ˌvas ˈdefərənz; -ˌrenz/ • n. (pl. va·sa de·fe·ren·ti·a / ˌvāsə ˌdefəˈrensh(ē)ə; ˌvāzə/ ) Anat. the duct that conveys sperm from the testicle to the urethra.

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"vas deferens." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

"vas deferens." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O999-vasdeferens.html

"vas deferens." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-vasdeferens.html

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vas efferens

vas efferens Any of various small ducts carrying sperm. In reptiles, birds, and mammals they convey sperm from the seminiferous tubules of the testis to the epididymis; in invertebrates they carry sperm from the testis to the vas deferens.

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"vas efferens." A Dictionary of Biology. 2004. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

"vas efferens." A Dictionary of Biology. 2004. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O6-vasefferens.html

"vas efferens." A Dictionary of Biology. 2004. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-vasefferens.html

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vas deferens

vas deferens (vas def-er-ĕnz) n. (pl. vasa deferentia) either of a pair of ducts that conduct spermatozoa from the epididymis to the urethra on ejaculation.

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"vas deferens." A Dictionary of Nursing. 2008. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

"vas deferens." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O62-vasdeferens.html

"vas deferens." A Dictionary of Nursing. 2008. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-vasdeferens.html

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vas deferens

vas deferens One of a pair of ducts carrying sperm from the testis (or epididymis) to the outside, in mammals through the urethra.

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"vas deferens." A Dictionary of Biology. 2004. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

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"vas deferens." A Dictionary of Biology. 2004. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-vasdeferens.html

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vas deferens

vas deferens see reproductive system ; vasectomy .

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"vas deferens." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

"vas deferens." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1E1-X-vasdefer.html

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vas deferens

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"vas deferens." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

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Free newspaper and magazine articles

Effects of veratrine and paeoniflorin on isolated mouse vas deferens.
Magazine article from: Phytomedicine: International Journal of Phytotherapy &amp; Phytopharmacology; 5/1/2002
Effect of pinacidil on the contractile response of cyclophosphamide-treated...
Magazine article from: Indian Journal of Medical Research; 3/1/1999
Health: Sperm 'tap' could make a vas deferens for men.(News)
Newspaper article from: The News Letter (Belfast, Northern Ireland); 1/6/2000

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