Propose the effects of each of the following drug types on BOTH neural and muscl

Question

Propose the effects of each of the following drug types on BOTH neural and muscle function in terms of how neurotransmitter secretion and muscle contraction would be affected (ie, reduced secretion/contraction or extended secretion/contraction). Be sure to walk me through the steps leading to the outcome; that is, be sure to talk about what would or would not happen with channels, voltage changes, and events causing Nt secretion/muscle contraction.

a) A drug that blocked chemically-regulated Na+ channels

b) A drug that activated chemically-regulated Na+ channels and stayed bound to the receptor

c) A drug that blocked voltage-regulated Ca2+ channels

Explanation / Answer

Neuromuscular junctions connect the nervous system to the muscles. Muscle contraction is by the activation of nerves. Sodium and potassium help in sending electrical signals, called action potentials, which cause muscles to contract.

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