Which cell type does not release acetylcholine as its primary neurotransmitter?
a. sympathetic preganglionic
b. sympathetic postganglionic
c. parasympathetic preganglionic
d. sympathetic postganglionic
e. alpha motor neurons
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Question 2) During reabsorption, for the most part chloride ions:
a. pass between cells
b. move down their electrical gradient
c. move against their concentration gradient
d. both (a) and (b)
e. all of the above
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Question 3) Postganglionic autonomic fibers
a. end in a single terminal swelling, like a synaptic knob, that releases the neurotransmitter.
b. have numerous varicosities in their terminal branches that simultaneously release neurotransmitter over a large area of the innervated organ rather than on single cells.
c. innervate skeletal, smooth, and cardiac muscle.
d. both (a) and (c) above.
e. both (b) and (c) above.
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Question 4) Reabsorption of chloride
a. is active.
b. is passive.
c. is dependent on the amount of sodium reabsorbed.
d. both (a) and (b) above.
e. both (b) and (c) above.
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Question 5) All of the following release acetylcholine except
a. sympathetic preganglionic fibers.
b. parasympathetic preganglionic fibers.
c. sympathetic postganglionic fibers.
d. parasympathetic postganglionic fibers.
e. motor neurons.
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Question 6) Which of the following plasma constituents is not regulated by the kidneys?
a. glucose
b. Na+
c. H+
d. phosphate
e. water
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Question 7) What system would suppress the digestive organs during times of greater physical activity?
a. parasympathetic.
b. enteric nervous system.
c. somatic nervous system.
d. none of these answers.
e. all of these answers
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Question 8) Which transporter is a symport carrier for glucose?
a. SGLT
b. Na+-K+ ATPase
c. GLUT
d. both (a) and (c)
e. none of the above
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Question 9) Which is not characteristic of sympathetic pathways?
a. fibers issue from the thoracic and lumbar levels.
b. preganglionic fibers release norepinephrine.
c. postganglionic fibers release ACh.
d. short preganglionic fibers.
e. most preganglionic fibers synapse in the chain ganglia.
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Question 10) The GLUT transporter is:
a. moves salt
b. moves water
c. is found in the distal tubules
d. located on the basolateral membrane of tubule cells
e. is an active transporter
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