Triggering of the muscle action potential occurs after
A) acetylcholine binds to chemically gated channels in the motor end plate membrane.
B) acetylcholinesterase binds to receptors on the end plate.
C) calcium ion binds to channels on the end plate.
D) the nerve action potential jumps across the neuromuscular junction.
E) Any of these actions can produce an action potential in the muscle cell.
Correct Answer:
Verified
Q35: Cross-bridges are portions of
A)actin molecules.
B)myosin molecules.
C)troponin molecules.
D)tropomyosin
Q58: The Na+/K+ ion pump is responsible for
A)diffusing
Q60: During the _ phase of action potential
Q61: Communication between axons and muscle fibers occurs
Q62: A muscle producing tension that peaks but
Q64: When calcium ion binds to troponin,
A)tropomyosin moves
Q65: Which statement about excitation-contraction coupling is incorrect?
A)Calcium
Q66: Which of the following become connected by
Q68: The cytoplasm of the neuromuscular synaptic terminal
Q72: How would the loss of acetylcholinesterase from
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