What are responsible for contraction and relaxation in muscles ?
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Contractile Proteins are responsible for contraction and relaxation in muscles.
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Skeletal muscles are involved in contraction and relaxation. An action potential travels through the motor neuron. The motor neurons are linked to the muscle fibers at the neuromuscular junction. ... This neurotransmitter binds to the receptors on the surface of the muscle fiber leading to muscular contraction.
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