Which gland is located in the sella turcica?
A. thymus
B. adrenal
C. pineal
D. hypothalamus
E. pituitary (hypophysis)
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Question 2) Oxytocin release is stimulated by
A. nursing a baby.
B. increased blood pressure.
C. increased urine output.
D. a hypothalamic-releasing hormone.
E. increased blood osmolality.
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Question 3) ADH (antidiuretic hormone)
A. is produced by cells of the anterior pituitary.
B. is stored and released from the posterior pituitary.
C. has the uterus as its primary target.
D. travels on axons to its target tissue.
E. travels in the blood from the hypothalamus to the posterior pituitary.
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Question 4) A person working outside in the hot sun can perspire a great deal. This increase in perspiration results in an increase in water loss from the body. Increased water loss causes the blood osmolality to increase.
This increased osmolality is sensed by the
A. kidneys.
B. osmoreceptors.
C. cerebral cortex.
D. anterior pituitary.
E. baroreceptors.
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Question 5) Urine volume ____ when ADH (antidiuretic hormone) secretion decreases.
A. increases
B. decreases
C. is not affected
D. declines
E. None of these choices are correct.
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Question 6) Oxytocin is responsible for
A. preventing release of insulin from the pancreas.
B. preventing the formation of goiters.
C. milk production by the mammary glands.
D. regulating blood calcium levels.
E. causing contractions of uterine smooth muscle during labor.
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Question 7) If fluid intake increases dramatically over a short time frame,
A. ADH (antidiuretic hormone) secretion increases.
B. ADH secretion decreases.
C. there is no effect on ADH secretion.
D. ADH secretion stops.
E. None of these choices are correct.
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Question 8) Which of the following hormones is synthesized by the hypothalamus?
A. ADH (antidiuretic hormone)
B. MSH (melanocyte stimulating hormone)
C. TSH (thyroid stimulating hormone)
D. ACTH (adrenocorticotropic hormone)
E. T3 and T4
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Question 9) What role does oxytocin play in lactation?
A. ejection of milk
B. production of milk
C. storage of milk
D. stop production of milk
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Question 10) ADH (antidiuretic hormone) secretion will increase when
A. blood osmolality increases.
B. blood pressure increases.
C. blood volume increases.
D. blood pressure decreases.
E. Both blood osmolality increases and blood pressure decreases are correct.
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