When an Electrical Impulse Traveling Along a Motor Neuron Arrives

question 65

Multiple Choice

When an electrical impulse traveling along a motor neuron arrives at a neuromuscular junction

• A) there is an increase in the secretion of acetylcholine at the neuromuscular junction.
• B) calcium is transported back to the sarcoplasmic reticulum.
• C) sliding of actin and myosin filaments is inhibited.
• D) myosin-actin cross-bridges are destroyed.
• E) a new electrical impulse is generated that returns the message to the original nerve.

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Definitions:

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