Which statement about thermoregulation is true?
A) Thermoregulatory set points are highest during sleep.
B) Entrance into hibernation begins with an increase in metabolic rate.
C) Aspirin can lower the hypothalamic set point of a person with a fever.
D) Hyperthermia may result from starvation.
E) Cooling the hypothalamus decreases metabolic rate.

Question

Quizplus · Accepted Answer

Aspirin works by inhibiting the production of prostaglandins, which can cause fever. By reducing the number of prostaglandins, aspirin can lower the hypothalamic set point and return the body temperature to normal.

Note: A is false because the thermoregulatory set point is lowest during sleep. B is false because entrance into hibernation begins with a decrease in metabolic rate. D is false because hyperthermia is an elevated body temperature, not caused by starvation. E is false because cooling the hypothalamus typically increases metabolic rate by causing shivering and increasing heat production.

Which Statement About Thermoregulation Is True