Card 25 / 34: At the NMJ, what happens after the action potential arrives?
A)
Synaptic vesicles fuse with cell membrane.
B)
Acetylcholine released via process of exocytosis.
C)
Acetylcholine binds with receptor sites on motor end plate, causing depolarization of motor end plate and sarcolemma.
D)
Calcium ions rush in and react with synaptic vesicles.
E)
Impulse travels T-tubules and sarcoplasmic reticulum.
Answer:
D) Calcium ions rush in and react with synaptic vesicles.
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Nick Swain |
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