In the neuromuscular junction, once the acetylcholine receptor has bound acetylcholine on the postsynaptic muscle fiber, the permeability of the postsynaptic membrane to _______ increases.

Question

Quizplus · Accepted Answer

When acetylcholine binds to its receptors on the postsynaptic muscle fiber, it causes the postsynaptic membrane to increase its permeability to sodium (Na+) and potassium (K+), leading to depolarization of the muscle cell membrane and eventually muscle contraction.

In the Neuromuscular Junction, Once the Acetylcholine Receptor Has Bound