The ejaculatory ducts, formed by the union of the vas deferens and the duct of the seminal vesicle, open into the male urethra at which site?

• A Seminal colliculus (verumontanum) on the posterior wall of the prostatic urethra ✓
• B Prostatic sinus on either side of the urethral crest
• C Membranous urethra within the deep perineal pouch
• D Bulb of the penis in the spongy urethra

Explanation

The two ejaculatory ducts pierce the prostate and open on the seminal colliculus, a midline elevation on the posterior wall of the prostatic urethra produced by the urethral crest. The prostatic ducts themselves open into the prostatic sinuses flanking the colliculus. The membranous urethra contains no glandular openings, and the spongy urethra receives only the bulbourethral glands distally.

Reference: Gray's Anatomy for Students, 4th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.