Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 14 PCB Single Correct MCQ
Published on: August 14, 2026

The release of growth hormone from the pituitary gland is inhibited by the action of;

A
Somatostatin from the pituitary gland
B
Prolactin from the pituitary gland
C
Oxytocin from the hypothalamus
D
Somatostatin from the hypothalamus

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Text Solution

Verified by Experts
The correct answer is:
D

Somatostatin (growth hormone-inhibiting hormone, GHIH) released by hypothalamic neurons travels via the hypophyseal portal system to the anterior pituitary and inhibits GH secretion.

(GHRH stimulates the synthesis of growth hormones and prolactin and oxytocin don't inhibit GH.)

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