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When a motor neuron stimulates a skeletal muscle fiber, it causes waves of action potentials to propagate (or spread) along the sarcolemma. Propagation occurs as each section of the sarcolemma sequentially depolarizes the next portion of the membrane.

The propagation along the sarcolemma occurs through what kind of ion channel?​

A

Nicotinic Acetylcholine Receptors.

B

Voltage-gated Calcium Channels.

C

Voltage-gated Sodium Channels.

D

Muscarinic Acetylcholine Receptor.

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