After nervous stimulation stops, what prevents ACh in the synaptic cleft from continuing to stimulate contraction?
A) the action potential stops going down the overloaded T tubules
B) acetylcholinesterase destroying the ACh
C) calcium ions returning to the terminal cisternae
D) the tropomyosin blocking the myosin once full contraction is achieved

Question

Quizplus · Accepted Answer

Acetylcholinesterase is an enzyme that breaks down acetylcholine (ACh) in the synaptic cleft, preventing it from continuing to stimulate muscle contraction after nervous stimulation stops.

After Nervous Stimulation Stops, What Prevents ACh in the Synaptic