A Motor Unit Refers to

question 166

Multiple Choice

A motor unit refers to

• A)a single motor neuron plus all of the muscle fibers it innervates
• B)a single muscle fiber plus all of the motor neurons that innervate it
• C)all of the motor neurons supplying a single muscle
• D)a pair of antagonistic muscles
• E)a sheet of smooth muscle cells connected by gap junctions

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Definitions:

Degrees of Freedom

The quantity of autonomous numbers or measures that can be allocated to a statistical distribution while still adhering to all restrictions.

Sample Size

The number of observations or elements drawn from a larger population for the purpose of statistical analysis.

Null Hypothesis

A hypothesis that there is no effect or no difference, and it serves as the default assumption in statistical hypothesis testing.

Correlation Coefficient

A statistical index ranging from -1 to 1 that measures the degree of association between two variables.