Which is the neurotransmitter that causes the release of calcium ions from reservoirs within the muscle cell and thereby initiates the steps of contraction?
A. Norepinephrine
B. Acetylcholinesterase
C. Serotonin
D. Acetylcholine
Answer: D
Anatomy & Physiology
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The preganglionic axons of CN VII extend to the
A. submandibular ganglion. B. pterygopalatine, submandibular, and otic ganglia. C. pterygopalatine and submandibular ganglia. D. pterygopalatine ganglion. E. otic ganglion.
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Anatomy & Physiology