Topic: Hormonal disorders· Human Physiology

Hypersecretion of Growth Hormone in adults does not cause further increase in height, because :

1. Epiphyseal plates close after adolescence.

2. Bones loose their sensitivity to Growth Hormone in adults.

3. Muscle fibres do not grow in size after birth.

4. Growth Hormone becomes inactive in adults.

Doubtly Asked 30 Oct 2026 NEET UG 2017 Practice test neet Save WhatsApp Report

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Answer: 1. Epiphyseal plates close after adolescence.

Height increases through growth at the epiphyseal plates of long bones. After adolescence these plates close (ossify), so bones can no longer lengthen even if growth hormone is high.

Excess GH in adults instead thickens bones of the face and hands (acromegaly). Hormone sensitivity and activity are not lost.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Hypersecretion of Growth Hormone in adults does not cause further increase in height, because :

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