Final answer:
At the NMJ, the nerve cell does not become part of the muscle cell. Acetylcholine is released into the synaptic cleft allowing communication between the nerve cell and muscle. A small gap separates the nerve end from the muscle cell.
Explanation:
The nerve cell becomes part of the muscle cell is NOT true at the neuromuscular junction (NMJ). At the NMJ, the motor neuron communicates with the muscle fiber through the release of acetylcholine (ACh) into a small gap, known as the synaptic cleft, which allows the nerve cell to stimulate the muscle. The nerve cell and muscle cell are separate entities that interact at the NMJ, with a small gap separating the nerve end from the muscle cell.
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