Biology Reproduction SZABMU 2023
PMDC Verified Question 25 of 81
In human males, inhibin hormone is produced by:
A
Leydig cells
B
Hensen's node cells
C
Sertoli cells
D
Interstitial cells
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Sertoli cells
Concept:

Testicular function is regulated by distinct feedback mechanisms originating from its different cell types.

Solution:

  • The seminiferous tubules contain "nurse" cells called Sertoli cells that support developing sperm.


  • When the sperm count is high, these Sertoli cells secrete the protein hormone inhibin.


  • Inhibin travels to the pituitary to suppress FSH secretion, acting as a negative feedback "brake" on spermatogenesis.


Why other options are incorrect:

Leydig cells (also known as interstitial cells) produce testosterone, not inhibin. Hensen's node is a structure found during early embryogenesis, unrelated to male endocrinology.

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.

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