Biology · Human Physiology - Thermoregulation
Which of the following describe thermoregulatory effector responses in a hot environment? (i) Arteriolar vasodilation redirects blood to superficial capillaries; (ii) Eccrine sweat glands secrete fluid for evaporative cooling; (iii) Arrector pili muscles relax; (iv) Hypothalamus triggers these changes.
- 1(i) and (iv) only
- 2(i), (ii), (iii), and (iv)✓
- 3(ii), (iii), and (iv)
- 4(i), (ii), and (iii)
Correct answer
(i), (ii), (iii), and (iv)
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