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← Nature & AnimalsWhich outcome results in mammals when exposed to high environmental temperatures inhibiting sympathetic nervous activity in peripheral arterioles?
A)Enhanced evaporative heat loss occurs✓
B)Increased shivering thermogenesis efficiency
C)Reduced metabolic rate of brown fat
D)Decreased blood flow to vital organs
💡 Explanation
Enhanced evaporative heat loss occurs due to vasodilation increasing blood flow towards the skin surface, facilitating heat dissipation, because radiation of warmth is achieved and sweat glands are activated more readily. Therefore, heat loss arises, rather than shivering, which generates heat in this condition.
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