After Nervous Stimulation Stops, What Prevents ACh in the Synaptic

question 7

Multiple Choice

After nervous stimulation stops, what prevents ACh in the synaptic cleft from continuing to stimulate contraction?

• A) acetylcholinesterase destroying the ACh
• B) calcium ions returning to the terminal cisternae
• C) the tropomyosin blocking the myosin once full contraction is achieved
• D) the action potential stops going down the overloaded T tubules

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