Biology Reproduction MDCAT 2018
PMDC Verified Question 66 of 81
Which of the following hormone acts on the uterus wall for thickening?
A
Zona pellucida
B
Oxytocin
C
Progesterone
D
Follicle stimulating hormone
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Progesterone
Concept:

The endometrium must be physically thickened and enriched to support a developing embryo.

Solution:

  • During the secretory phase of the menstrual cycle, the corpus luteum secretes large volumes of progesterone.


  • Progesterone acts directly on the endometrial wall of the uterus, causing the glands to grow, blood vessels to proliferate, and the tissue to become highly thick, spongy, and nutrient-rich.


Why other options are incorrect:

FSH acts on the ovaries, not the uterus. Oxytocin causes uterine contractions during labor, not thickening. The zona pellucida is a glycoprotein layer surrounding the ovum, not a hormone.

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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