Which statement is NOT true of the electrical events at the sarcolemma?
A)During polarization there is a positive charge outside.
B)Depolarization creates a reversal of charges.
C)Repolarization involves the outflow of potassium ions.
D)Depolarization is stimulated by cholinesterase.

Question

Quizplus · Accepted Answer

Depolarization is not stimulated by cholinesterase. Cholinesterase is an enzyme that breaks down acetylcholine, which is a neurotransmitter that is involved in the transmission of the nerve impulse across the neuromuscular junction. The depolarization of the sarcolemma is actually triggered by the influx of sodium ions, which occurs when the muscle cell is stimulated by a nerve impulse.

Which Statement Is NOT True of the Electrical Events at the Sarcolemma