Biology Chemical Coordination ETEA 2023 Retake
PMDC Verified Question 29 of 50
In breast feeding mother, which hormone would be at an increased level?
A
Prolactin
B
Thyroxine
C
Aldosterone
D
Insulin
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Prolactin
Concept:

Lactation requires sustained physiological changes to continuously produce nutrition for the newborn.

Solution:

  • Suckling by the infant strongly inhibits dopamine release from the hypothalamus, which removes the brakes on the anterior pituitary.


  • This causes a massive and sustained increase in prolactin levels, which commands the mammary alveolar cells to continuously synthesize milk.


Why other options are incorrect:

While oxytocin is also elevated for milk let-down, prolactin is the primary hormone driving the actual production process. Thyroxine, aldosterone, and insulin do not surge specifically for the mechanics of breastfeeding.

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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