Both preganglionic and postganglionic fibers of the parasympathetic system release the neurotransmitter _______.
A) acetylcholine
B) norepinephrine
C) epinephrine
D) dopamine
Correct Answer:
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Q23: There are _ pairs of cervical spinal
Q24: Preganglionic neurons of the sympathetic system release
Q25: Postganglionic neurons of the sympathetic system release
Q26: The peripheral nervous system consists of _.
A)
Q27: Neurons from the _ region innervate the
Q29: The _ branch innervates the anterior and
Q30: Second efferent neurons are _ neurons.
A) ganglionic
B)
Q31: The _ system is most active during
Q32: The _ nerve, which sends impulses to
Q33: The digestive system is mainly under _
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