The control of heart rate and blood pressure is based in the
A) cerebrum.
B) cerebellum.
C) diencephalon.
D) medulla oblongata.
E) heart.
Answer: D
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Human chorionic gonadotropin stimulates the degeneration of the corpus luteum
Indicate whether this statement is true or false.
During thyroid hormone secretion,
a. the follicular cells phagocytize a piece of colloid b. T4 and T3 are removed from thyroglobulin by lysosomal enzymes in the follicular cell; then they diffuse out of the cell and into the blood c. T4 and T3 are secreted by exocytosis of the colloid that has been internalized by the follicular cells d. both a and b occur e. both b and c occur
Which of these conditions is not a result of hyperkalemia?
A. There is less diffusion of potassium out of the cells. B. The cells are more sensitive to stimulation. C. The cells are partially depolarized. D. The resting membrane potential is more negative. E. Cells are more excitable.
The ________ nervous system stimulates the arrector pili muscles and gives you "goosebumps."
A) parasympathetic B) afferent C) dorsal D) sympathetic E) somatic