Triggering of the Muscle Action Potential Occurs After

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.