Thyroid hormone increases metabolic rate.
Indicate whether this statement is true or false.
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Question 2) An increase in metabolic rate would alter body temperature and trigger a compensatory
A. stimulation of sweat glands and vasoconstriction in blood vessels of the skin.
B. stimulation of sweat glands and vasodilation in blood vessels of the skin.
C. inhibition of sweat glands and vasoconstriction in blood vessels of the skin.
D. inhibition of sweat glands and vasodilation in blood vessels of the skin.
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Question 3) In response to decreases in body temperature, the brain signals the
A. anterior pituitary to release thyroid-stimulating hormone.
B. anterior pituitary to release thyroid-inhibiting hormone.
C. posterior pituitary to release thyroid-releasing hormone.
D. posterior pituitary to release thyroid-inhibiting hormone.
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Question 4) Conscious changes in behavior governed by the cerebral cortex do not meaningfully contribute to regulation of body temperature.
Indicate whether this statement is true or false.
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Question 5) Frostbite results from peripheral _________ due to exposure to cold temperatures.
A. vasoconstriction
B. vasodilation
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Question 6) Graves' disease is a condition in which some of the body's antibodies mimic thyroid-stimulating hormone and cause overactivity of the thyroid gland. What consequences would this have for neurons in the body, and how would metabolic rate be affected?
Would you expect someone with Graves' disease to feel chillier or warmer than someone who was unaffected?
What will be an ideal response?
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Question 7) Because basal metabolic rate is constant across individuals, everyone has a core body temperature of 98.6F.
Indicate whether this statement is true or false.
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Question 8) Vigorous physical activity causes total metabolic rate to
A. increase for the duration of the exercise.
B. increase during the exercise and for hours afterwards.
C. remain constant.
D. decrease to conserve energy during the exercise but increase to repay oxygen debt.
E. decrease during the exercise and for hours afterwards.
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Question 9) When an individual is exposed to cold temperatures, total metabolic rate
A. decreases.
B. increases.
C. remains constant.
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Question 10) The area of the brain that provides the primary control of body temperature is the
A. cerebellum.
B. cerebral cortex.
C. hypothalamus.
D. pineal gland.
E. medulla.
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