After Nervous Stimulation Stops, What Prevents ACh in the Synaptic

question 23

Multiple Choice

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

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

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Definitions:

Observed Z Value

A statistic measured in a dataset to determine how many standard deviations an element is from the mean.

Sample Mean

The average value of a sample set of numbers, calculated by summing all observations and dividing by the number of observations.

Population Average

The mean of a particular characteristic (e.g., age, income) of all the individuals or elements in a defined population.

Standard Error

A statistical measure that quantifies the variability or dispersion of a sampling distribution, often used to estimate the accuracy of a sample mean compared to the population mean.