Acetylcholine stimulates an action potential in the muscle cellmembrane by:
a) Opening chloride channels in the muscle cell membrane
b) Opening channels in the neuromuscular junction which allowsodium to move out of the cell
c) Opening channels in the neuromuscular junction which allowpotassium to move out of the cell
d) Opening channels in the neuromuscular junction which allowsodium to move in and potassium to move out, though sodium movesfaster than potassium because both chemical and electricalgradients drive sodium into the cell
e) Opening channels in the neuromuscular junction which allowsodium to move in and potassium to move out, though potassium movesfaster than sodium because potassium is closer to equilibrium
Please provide an explanation. Thank you.
