All of the following would be found in large arteries except:
A. elastic tissue.
B. smooth muscle.
C. endothelium.
D. valves.
Ans: D. valves.
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Which of the labeled structures in the diagram of the trigeminothalamic pathway is the first-order neuron?
a) A b) B c) C d) D e) E
What might happen in a nonpregnant woman who began taking high levels of progesterone and estrogen supplements followed by high doses of prolactin supplements?
A. The woman would spontaneously become pregnant. B. There would be no detectable change in the woman's body. C. The woman's mammary glands would begin lactating. D. The woman's vagina and uterus would atrophy.
The image receptors in a CT gantry are
A. digital imaging sensors. B. a film/screen combination. C. detectors. D. None of the above
During synaptic transmission,
A) The frequency of the action potential is directly correlated with neurotransmitter release. B) The frequency of the action potential is inversely correlated with neurotransmitter release. C) The intracellular concentration of Ca2+ remains stable because of intracellular buffers. D) The concentration of Ca2+ is inversely related to the amount of neurotransmitter released.