Triggering of the Muscle Action Potential Occurs After

question 103

Multiple Choice

Triggering of the muscle action potential occurs after

• A) acetylcholine binds to chemically-gated channels in the motor end plate.
• B) acetylcholinesterase is released from synaptic vesicles into the synaptic cleft.
• C) calcium ion binds to channels on the motor end plate.
• D) the action potential jumps across the neuromuscular junction.
• E) Any of these can produce an action potential in the muscle cell.

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