The synapse of a motor neuron with a muscle fiber is known as the:

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The synapse between a motor neuron and a muscle fiber is called the neuromuscular junction. This is where the nerve impulse from the motor neuron is transmitted to the muscle fiber, causing it to contract. The synaptic bulb releases the neurotransmitter acetylcholine, which binds to receptors on the motor end plate of the muscle fiber, leading to depolarization and muscle contraction. The synaptic cleft is the space between the synaptic bulb and the motor end plate.

The Synapse of a Motor Neuron with a Muscle Fiber