MUSCLE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What type of nerve causes a muscle to contract?
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motor neuron
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parasympathetic neuron
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interneuron
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sensory neuron
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Explanation:
Detailed explanation-1: -Alpha motor neurons (also called lower motor neurons) innervate skeletal muscle and cause the muscle contractions that generate movement.
Detailed explanation-2: -Muscle contraction occurs when the thin actin and thick myosin filaments slide past each other. It is generally assumed that this process is driven by cross-bridges which extend from the myosin filaments and cyclically interact with the actin filaments as ATP is hydrolysed.
Detailed explanation-3: -The interface between a motor neuron and muscle fiber is a specialized synapse called the neuromuscular junction.
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