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The response of skeletal muscle to the somatic motor neuron is always excitatory, resulting in muscle...

The response of skeletal muscle to the somatic motor neuron is always excitatory, resulting in muscle contraction. If it's always excitatory, what must happen at the level of the neuron to get a muscle to relax?

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Answer #1

The neuron must repolarise to get the muscle relax.

An excitatory neuron is always depolarizes during its stimulation and repolarizes rapidly which leads to the closure of ca2+ channels and dimnished or stops the release of acetylcholine. Hence the skeletal muscle relaxes.

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