Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Ejaculatory Duct
Urogenital System

Ejaculatory Duct

ductus ejaculatorius

Read more

Quick Facts

Location: Posterior to the bladder and superior portion of the prostate gland.

Arterial Supply: Inferior vesical artery.

Venous Drainage: Prostatic and vesical venous plexuses.

Innervation: Sympathetic: Hypogastric nerve.

Lymphatic Drainage: Internal iliac lymph nodes.

Complete Anatomy
The world's most advanced 3D anatomy platform
Try it for Free

Structure/Morphology

The ejaculatory duct is a muscular tube, approximately 2 cm long, that is formed by the union of the duct of the seminal vesicle and the ampulla of the ductus deferens. Small openings of the ejaculatory duct open on both sides, or within, the prostatic utricle, to open into the prostatic urethra.

Anatomical Relations

The ejaculatory duct is located posterior to the bladder and superior portion of the prostate gland.

Function

During ejaculation, the ejaculatory duct dilates and propels sperm and seminal fluid into the prostatic urethra, and subsequently out of the body via the external urethral orifice.

Arterial Supply

The ejaculatory duct is supplied by the inferior vesical artery, which is a branch of the internal iliac artery.

Venous Drainage

The ejaculatory duct is drained by the prostatic and vesical venous plexus, which drain into the internal iliac vein.

Innervation

During ejaculation, the hypogastric nerve controls rapid contraction of the ejaculatory duct, by way of the sympathetic nervous system.

Lymphatic Drainage

The lymph of the ejaculatory duct is drained into the internal iliac lymph nodes.

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy