Card 24 / 34: What occurs first at the neuromuscular junction before muscular contraction?
A)
Calcium ions rush in and react with synaptic vesicles.
B)
Motor nerve's impulse action potential arrives at axon terminal of the neuromuscular junction.
C)
Synaptic vesicles fuse with cell membrane.
D)
Acetylcholine released via process of exocytosis.
E)
Impulse travels T-tubules and sarcoplasmic reticulum.
Answer:
B) Motor nerve's impulse action potential arrives at axon terminal of the neuromuscular junction.
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Nick Swain |
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