Nerve Impulses Are Sent to Slow the Heart's Rate of Contraction

question 4

Multiple Choice

Nerve impulses are sent to slow the heart's rate of contraction. The nerve fibers sending these signals will most likely belong to which division of the nervous system?

• A) sensory (afferent) division
• B) somatic nervous system
• C) sympathetic division
• D) parasympathetic division

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Definitions:

Coefficient of Correlation

A numerical metric that determines the intensity and course of a straight-line association between two variables that can be quantified.

Sample Coefficient

A measure that quantifies some kind of property or behavior, such as variability or correlation, from a sample of a population.

Correlation

Correlation refers to a statistical measure that indicates the extent to which two or more variables fluctuate together. A positive correlation indicates that as one variable increases, the other does too.

Coefficient of Determination

A statistic used in the context of statistical models whose main purpose is to provide a measure of how well observed outcomes are replicated by the model.