The Sites Where a Chemical Substance Is Transmitted from the Presynaptic

question 43

Multiple Choice

The sites where a chemical substance is transmitted from the presynaptic terminal of an axon to the postsynaptic membrane of a muscle fiber are called

• A) neuromuscular junctions.
• B) sarcomeres.
• C) myofilaments.
• D) Z disks.
• E) cell bodies of neurons.

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Definitions:

Standard Deviation

A measure of the dispersion or variability within a set of data points, representing how spread out the values are from the mean.

Z-Score

Scores for the standard normal distribution measured in standard deviation units.

Standard Normal Distribution

The standard normal distribution is a special case of the normal distribution with a mean of zero and a standard deviation of one, used in z-tests.

Mean

To determine the arithmetic average, one sums up every number in the collection and divides by the number of elements in the collection.