vas deferens

A secretory duct that transports sperm from the testis. In mammals this is a continuation of the epididymis and ends in the prostatic urethra where it terminates to form ejaculatory duct. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the vas deferens is

A secretory duct that transports sperm from the testis. In mammals this is a continuation of the epididymis and ends in the prostatic urethra where it terminates to form ejaculatory duct. The atlas records it as a organ at the organ scale in the human body.

Where the vas deferens is

It sits within the reproductive system. Positioned deliberately as part of this species body plan.

What the vas deferens connects to

The atlas records 13 typed relationships for it, across 5 kinds of connection. part of male genital duct, male reproductive system and reproductive system, and 1 more.

Supply and innervation

Arterial supply: deferent duct artery.

Also called

Also recorded as deferent duct, ductus deferens, vas deferen, sperm duct and vasa deferentia. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001000, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: male genital duct, male reproductive system, reproductive system and spermatic cord.
• A kind of: anatomical conduit, anatomical structure and duct.
• contains: adventitia of ductus deferens, mucosa of deferent duct, muscular coat of vas deferens and vas deferens epithelium.
• contributes to morphology of: internal male genitalia.
• Supplied by: deferent duct artery.

Questions

Where is the vas deferens?

It sits within the reproductive system. Positioned deliberately as part of this species body plan.

What does the vas deferens connect to?

Part of: male genital duct, male reproductive system, reproductive system and spermatic cord.

Is the vas deferens the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.