Explain the role
of neurotransmitters in stimulating skeletal muscle contraction.
Acetylcholine: released into the synaptic gap and binds to receptor
sites on the motor endplate causing the sarcolemma to depolarize, generating an
action potential (this is done by a flow of sodium ions into the muscle fiber)
Cholinesterase: breaks down acetylcholine in the synaptic gap after
muscle contraction has taken place. This allows the neuron to return to its
resting state.
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