How would a drug that competes with ACh for receptors at the motor end plate affect skeletal muscle ? It would:
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- Produce uncontrolled muscle spasms
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- Cause the muscles to contract and be unable to relax
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- Cause muscles to relax and be unable to contract
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- Make the muscles more excitable
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EXP:
Drugs competing with Ach at neuromuscular junction are competitive or non-depolarizing neuromuscular blockers. These drugs are used as muscle relaxants. In contrast to depolarizing muscle relaxants, these donot cause initial fasciculations.