NEET Previous Year Question
Normal sleep-wake cycle in a human body is maintained by the secretion of :
Topic: NEET PYQ
Answer: B. Full step-by-step solution below.
- AThymus gland
- BPineal gland
- CPituitary gland
- DThyroid gland
Correct answer: B
Solution
(b) The pineal gland secretes melatonin, which regulates the sleep–wake cycle (biological clock) in humans.More Chemical Coordination & Integration PYQs
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