Describe the hormone relaxin.
A.
Relaxin is produced by the parathyroid glands and triggers the release of calcium from the bones.
B.
Relaxin is produced by the testes and stimulates secretion of the reproductive glands.
C.
Relaxin is produced by the adrenal cortex and maintains normal metabolism.
D.
Relaxin is produced by the ovaries and increases the flexibility of connective tissue.
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Question 2) 163. In addition to testosterone (testis) and estrogen (ovary), these glands also produce the hormone ____________ which decreases the production of FSH.
A.
relaxin
B.
thyroxine
C.
insulin
D.
parathyroid hormone
E.
inhibin
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Question 3) The major target tissues of insulin include all of the following, except
A.
adipose tissue.
B.
liver.
C.
skeletal muscle.
D.
brain.
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Question 4) All of the following tissues are targeted by PTH, except
A.
bone.
B.
the intestines.
C.
the kidneys.
D.
muscle.
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Question 5) All of the following classes of hormones are secreted by the adrenal cortex except
A.
mineralcorticoids.
B.
glucocorticoids.
C.
androgens.
D.
steroid hormones.
E.
water-soluble peptides.
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Question 6) All of the following conditions may result in the release of adrenal medullary hormones, except
A.
stress.
B.
low blood glucose.
C.
exercise.
D.
injury.
E.
consuming a large meal.
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Question 7) Which of the following is NOT a function of LH?
A.
Stimulates ovulation
B.
Stimulates the synthesis of testosterone
C.
Support for sperm cell production
D.
Stimulates secretion of progesterone
E.
Stimulates contraction of the uterus
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Question 8) The major thyroid hormone that interacts with target cells is
A.
calcitonin.
B.
thyroxine.
C.
tetraiodothyronine.
D.
T3
E.
T4
(
Question 9) Tetraiodothyronine is also commonly referred to as thyroxine.
Indicate whether the statement is true or false.
(
Question 10) Describe the mechanism of action of thyroid hormones.
A.
These hormones interact with membrane signaling proteins.
B.
Thyroid hormones bind to molecules of the cytoskeleton in the cell cytoplasm.
C.
Thyroid hormones bind to epithelial cell membranes that line the intestine.
D.
These hormones bind to molecules of the cytoskeleton in the cell cytoplasm.
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