QS Study

Vas deferens is also called ductus deferens or the deferent duct. It is a thick-walled, muscular tube which transmits spermatozoa from the epididymis to the ejaculatory duct. It is a straight, thick muscular tube that conveys sperm from the epididymis to the ampulla and eventually, to the ejaculatory duct.

Origin – It begins as a continuation of the tail of the epididymis. It is a cord-like structure that can be palpated in the upper part of the scrotum. It is, in fact, a thick-walled muscular duct. The primary function of this duct is to transport spermatozoa from epididymis to urethra.

Fig: Vas Deferens

Termination –

At the base of the prostate, the vas deferens is joined at an acute angle by the duct of the seminal vesicle to form the ejaculatory duct.

Function:

It transmits spermatozoa from the epididymis to the ejaculatory duct. It is a 30cm long tube whose main function is to transport sperms that are mature and which reside in the epididymis, towards the urethra, when the body is ready for ejaculation.