When body temperature increases above the normal range, thermoreceptors in the skin and hypothalamus detect the increase in body temperature. The heat-loss center of the hypothalamus is activated, which sends signals to blood vessels and sweat glands. In
response, blood vessels in the skin dilate and sweat glands release sweat. Determine the part of this negative feedback loop that serves as the effector(s).
A) hypothalamus B) thermoreceptors
C) blood vessels and sweat glands D) body temperature
Answer: C
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__________ are located in the walls of the stomach and small intestine.
A) Skeletal muscle cells B) Cardiac muscle cells C) Smooth muscle cells D) Both skeletal and cardiac muscle cells E) Both cardiac and smooth muscle cells
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a. Peritubular capillaries b. Glomerular capillaries c. Nephronic tubules d. Juxtaglomerular apparatus e. Bowman's capsule
All of the following glands are both endocrine and exocrine except
A. the ovaries. B. the testes. C. the adrenal glands. D. the pancreas. E. All of these glands are both endocrine and exocrine.