Ejaculatory duct.html

Ejaculatory duct

Male Anatomy

Vesiculæ seminales and ampullæ of ductus deferentes, seen from the front. The anterior walls of the left ampulla, left seminal vesicle, and prostatic urethra have been cut away.
Latin	ductus ejaculatorii
Gray's	subject #261 1247
MeSH	Ejaculatory+Ducts

The Ejaculatory ducts (ductus ejaculatorii) are paired structures in male anatomy, about 2 cm in length.

Each ejaculatory duct is formed by the union of the vas deferens with the duct of the seminal vesicle. They pass through the prostate, and empty into the urethra at the Colliculus seminalis. During ejaculation, semen passes through the ducts and exits the body via the penis.

Surgery to correct Benign Prostatic Hyperplasia (BPH) may destroy these ducts resulting in retrograde ejaculation.

Additional images

Lobes of prostate

Vertical section of bladder, penis, and urethra.

Prostate with seminal vesicles and seminal ducts, viewed from in front and above.

Median sagittal section of male pelvis.

SUNY Figs 44:03-15 - "Lateral (A) and posterior (B) views of the bladder and associated structures."
Human anatomy at Dartmouth figures/chapter_34/34-3.HTM

v • d • e

Scrotum	layers (skin, Dartos, External spermatic fascia, Cremaster/Cremasteric fascia, Internal spermatic fascia) • Perineal raphe • Spermatic cord

Testes	layers (Tunica vaginalis, Tunica albuginea, Tunica vasculosa testis) • Appendix • Mediastinum • Lobules • Septa • Leydig cell • Sertoli cell • Blood-testis barrier

Spermatogenesis	Spermatogonium • Spermatocytogenesis • Spermatocyte • Spermatidogenesis • Spermatid • Spermiogenesis • Spermatozoon

Other	Seminiferous tubules (Tubuli seminiferi recti, Rete testis, Efferent ducts) • Epididymis (Appendix, Stereocilia) • Vas deferens (Ampulla) • Ejaculatory duct

Accessory glands

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