Normal body temperature in mamals like human beings is____________?
Correct answer: B. 36 - 38°C
- A. 26 - 28°C
- B. 36 - 38°C
- C. 46 - 48°C
- D. 56 - 58°C
Explanation
Human enzymes and cells function best near 37°C, so normal mammalian body temperature is approximately 36 to 38°C. A common mistake is choosing 26 to 28°C, which is far below the temperature maintained by mammalian homeostasis.
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About Thermoregulation
Thermoregulation maintains body temperature through negative feedback controlled mainly by the hypothalamus. It covers vasodilation and vasoconstriction, sweating, shivering, changes in metabolic heat production and behavioural responses, while distinguishing heat loss by radiation, conduction, convection and evaporation from temperature regulation itself.
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