Biology Reproduction DUHS 2022
PMDC Verified Question 48 of 81
Uterus opens to the vagina by a narrow opening bounded by muscular sphincter at its bottom known as:
A
Urinary bladder
B
Cervix
C
Oviduct
D
Labia
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Cervix
Concept:

The female reproductive system relies on muscular sphincters to isolate and protect the sterile environment of the uterus from the external environment.

Solution:

  • The cervix is the lower, narrow portion of the uterus.


  • It contains a strong muscular sphincter that forms a canal connecting the uterine cavity to the vagina.


  • Normally, this opening is blocked by a mucous plug to prevent infection, but it dilates during childbirth.


Why other options are incorrect:

The oviducts connect the ovaries to the top of the uterus. The urinary bladder is part of the excretory system. The labia are external genital structures.

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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