How Does an Impulse from a Motor Neuron Trigger a Muscle

question 44

Multiple Choice

How does an impulse from a motor neuron trigger a muscle cell to contract?

• A)Acetylcholine is released from the neuron, triggering calcium release from the muscle cell's endoplasmic reticulum
• B)Acetylcholine is released from the neuron, triggering calcium absorption by the muscle cell's endoplasmic reticulum
• C)Acetylcholine is released from the muscle cell, triggering calcium release from the neuron's endoplasmic reticulum
• D)Acetylcholine is released from the neuron, triggering calcium to enter the muscle cell
• E)Acetylcholine is released from the muscle cell, triggering calcium to enter the neuron

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