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Body temperature, hunger, thirst and the link between the nervous and endocrine systems are controlled by which part of the brain, acting as the thermoregulatory centre?
AThalamus
BCerebellum
CPons
DHypothalamus
Answer & Solution
Correct answer: D. Hypothalamus
1. The clues are temperature control, hunger, thirst and a link to the endocrine system.
2. This region acts as the body's thermoregulatory centre.
3. Option A (thalamus) is mainly a relay centre for sensory and motor signals, a trap.
4. Option B (cerebellum) maintains posture and balance, not temperature or hunger.
5. Option C (pons) relays signals and helps control respiration and sleep, not thirst.
6. The hypothalamus lies at the base of the thalamus and controls these involuntary drives.
7. It also links the nervous system to the pituitary gland, so the answer is option D.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 15 Nervous System "Hypothalamus", p.229_
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