Question

The urethral crest is situated in the:

• A. Prostatic urethra
• B. Membranous urethra
• C. Penile urethra
• D. Bulbar urethra

Hint:

The crest carries the verumontanum where the ejaculatory ducts open.

Answer 1

The Correct Option is A

Step 1: The male urethra is divided into prostatic, membranous, and spongy (penile, including the bulbar part) portions.
Step 2: The prostatic urethra runs through the prostate and shows a longitudinal ridge on its posterior wall called the urethral crest.
Step 3: The middle of the urethral crest bears a rounded elevation, the seminal colliculus (verumontanum), on which the prostatic utricle and the two ejaculatory ducts open.
Step 4: On either side of the urethral crest is a groove, the prostatic sinus, into which the prostatic ductules drain.
Step 5: These features (crest, colliculus, prostatic sinuses) are unique to the prostatic urethra and are not present in the membranous, penile, or bulbar parts.
Conclusion: The urethral crest is located in the prostatic urethra (option 1).