Which of the following is most descriptive of a state of prolonged fasting?
A. The secretion of insulin, glucagon, ACTH, and cortisol would all be increased.
B. Brain metabolism will shift to increase utilization of glucose and to decrease oxidation of ketones.
C. Muscle protein will be broken down to provide substrates for hepatic and renal gluconeogenesis.
D. The secretion of insulin, glucagon, ACTH, and cortisol will all be decreased.
E. The secretion of insulin and cortisol would be increased, while glucagon and ACTH secretion would be decreased.
C
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With age, bones
A. become more flexible. B. become brittle. C. lose their blood supply. D. increase their pliability. E. increase in mass.
There are _____ pairs of cranial nerves and ______ pairs of spinal nerves
Fill in the blank(s) with the appropriate word(s).
Helper T cells do all of the following except
A) activate sensitized B cells by costimulation. B) destroy target cells using perforins. C) enhance cell-mediated immunity. D) secrete cytokines to stimulate production of plasma cells. E) enhance antibody-mediated immunity.
The vascular pressure that declines from roughly 35 mm Hg to about 18 mm Hg is the
A) venous pressure. B) capillary hydrostatic pressure. C) diastolic pressure. D) peripheral pressure. E) pulse pressure.