Prostate anatomy

A walnut-sized gland below the bladder that adds fluid to semen.

Open in the 3D explorer Locate structures Quiz: reproductive

3D model of the Prostate in the Anatomy Nexus anatomy atlas — Interactive 3D model: Prostate. Orbit, zoom and click the structures.Load the 3D model

Overview page. A full anatomy article for the prostate has not been written yet; below are the modelled structures, the system it belongs to and every clinical topic that mentions it.

About

A walnut-sized gland surrounding the first part of the urethra below the bladder.

Function. Secretes fluid that makes up about a third of semen.

Clinical note. Benign enlargement slows the urinary stream in older men; prostate cancer is among the commonest male cancers.

Structures in the atlas 1

The modelled pieces that make up the prostate in the 3D atlas. Each opens in the explorer.

Prostate

The reproductive in brief

BodyParts3D is built on an adult male, so this layer contains the male reproductive organs: the testes, which produce sperm and testosterone, the epididymis where sperm mature, the deferent ducts that carry them to the urethra, the seminal vesicles and prostate that add most of the seminal fluid, and the erectile bodies of the penis.

All structures of the reproductive