This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
True about prostatic urethra are all except 
Select and explain. 
A. Trapezoid in cross-section, B. Presence of verumontanum, C. Opening of prostatic ducts, D. Contains urethral crest
A: Trapezoid in cross-section
Answer: A: Trapezoid in cross-section 
Explanation: Prostatic urethra When working properly, it prevents the urine until it is time to get the semen back into the bladder during ejaculation stops. If damaged, the semen is forced back into the bladder and prostatic urethra finally leaving the normal . Ref - BDC 6e Vol2 , researchgate.net