Concept:Sperm are highly sensitive to acidic environments, which can destroy their motility and viability.
Solution:- Because the urethra is shared by both the excretory and reproductive systems in males, residual urine leaves the urethral tract dangerously acidic.
- Prior to ejaculation, the Cowper's glands (bulbourethral glands) secrete a clear, viscous, alkaline mucus.
- This fluid flushes the urethra, effectively neutralizing the acidity of any lingering urine and providing a safe, lubricated pathway for the sperm that follow.
Why other options are incorrect:While prostatic fluid is slightly acidic to neutral and seminal vesicle fluid is alkaline, the Cowper's gland is historically and functionally the
first responder specifically responsible for "pre-ejaculatory" urethral neutralization.
Quality & Fidelity Assurance:
Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.