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10 Steps of Muscle Contraction Test Questions and Answers Rated A
10 Steps of Muscle Contraction
10 Steps of Muscle Contraction
Step 1 - Nerve Impulse reaches Neuromuscu- lar Junction 2. Step 2 - Acetylcholine (ACH) Released by Mo- tor Neuron 3. Step 3 - ACH binds to Muscle Receptor Sites 4. Step 4 - Sodium Chan- nels in muscle OPEN 5. Step 5 - Na+ Ion rush causes change in cell charge Nerve signal from brain arrives at neuromuscular junction & axon terminal of motor neuron Motor neuron releases neurotransmitter Acetylcholine (Ach) into synaptic gap
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