vas deferens
vessel to transmit male sex cells, tube for carrying sperms to the exterior; plural, vasa deferentia
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Vas deferens
[L. vas - a canal carrying fluid; L. deferens - carrying away] A connecting duct in males between the epididymis of the testis and the urethra or cloaca; formed from the mesonephric duct. Synonym: ductus deferens.
vas deferens The duct that carries sperm from the epididymis to the ejaculatory duct and urethra. The tube connecting the testes with the urethra.
vas deferens pl. vasa deferentia
(vass deff-er-ens) [L. vas, a vessel + deferre, to carry down]
The tube in the male reproductive system in which sperm travel from the epididymis to the urethra.
vascular ...
vas deferens
The tube in the male reproductive system in which sperm travel from the epidiymis to the urethra.
(Vas Deferens; Seminal Duct)
The ductus deferens, the excretory duct of the testis, is the continuation of the canal of the epididymis.
Vas deferens obstruction
Infection, e.g. prostatitis
Retrograde ejaculation
Hypospadias
Impotence ...
Each vas deferens is cut near the top of the scrotum.
can be done in the doctor's office, with a local anesthetic, in 30-40 minutes
Testosterone secretion by the testes is not inhibited.
"V-ATPase dependent lumenal acidification in the kidney collecting duct and the epididymis/vas deferens". J. Exp. Biol 203: 127-145.
^ Forjac, M. (1999). "Structure and Properties of the Vacuolar (H+)-ATPases". J. Biol..
^ Han, X.
Sperm pass through the vas deferens and connect to a short ejaculatory duct that connects to the urethra. The urethra passes through the penis and opens to the outside.
In humans, sex can be defined on several levels: chromosomal sex (XX or XY); gonadal sex (testes or ovary); internal plumbing (oviduct, uterus, cervix, vagina or epididymis, vas deferens, urethra) and external plumbing (labia minora, labia majora, ...
androgenic gland Gland located near the vas deferens in many Crustacea. Its secretions are responsible for development of male secondary sexual characteristics.
androsterone An animal hormone not synthesized by plants.
During intercourse, sperm stored in the epididymis move through the vas deferens and the urethra before being ejaculated. If intercourse is unprotected, several hundred million sperm are released inside the partner's vagina.
Do you have a uterus and fallopian tubes or do you have an epididymis and a vas deferens. It then moves on to the external genitalia. Do you have a clitoris and labia or do you have a penis.
 See also: Sperm, Cells, Trans, Human, Protein
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