Reproductive physiology: practice question

A Physiology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Physiology · Reproductive physiology

Sample item

Which hormone causes milk ejection during breastfeeding?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

D. Oxytocin

Oxytocin contracts myoepithelial cells around mammary alveoli to eject milk, whereas prolactin stimulates milk synthesis.

Option by option

  • A. Progesterone

    Progesterone supports pregnancy physiology.

  • B. Follicle-stimulating hormone

    FSH regulates gonadal follicle development.

  • C. Prolactin

    Prolactin produces milk rather than ejecting it.

  • D. Oxytocin (correct)

    Correct: oxytocin mediates let-down reflex.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Physiology question

What is the answer to this Physiology question?

The best answer is D, Oxytocin. Oxytocin contracts myoepithelial cells around mammary alveoli to eject milk, whereas prolactin stimulates milk synthesis.

Why is "Progesterone" not the answer?

Progesterone supports pregnancy physiology.

Why is "Follicle-stimulating hormone" not the answer?

FSH regulates gonadal follicle development.

Why is "Prolactin" not the answer?

Prolactin produces milk rather than ejecting it.

What concept does this question test?

It tests Reproductive physiology in Physiology. The correct option holds because: Correct: oxytocin mediates let-down reflex.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Reproductive physiology?

For each system, sketch the key graph (pressure–volume loop, oxygen dissociation curve, nephron handling) and explain it aloud. Then use the flashcards and the other Physiology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.