What Effect Does the Nervous System Have on the Heart

question 63

Multiple Choice

What effect does the nervous system have on the heart rate?

• A)Stimulation by parasympathetic nerves causes the heart rate to slow down.
• B)Stimulation by sympathetic nerves sets the resting heart rate of the pacemaker cells in the SA node.
• C)Stimulation by sympathetic nerves causes the pacemaker cells of the AV node to depolarize more rapidly than the pacemaker cells of the SA node.
• D)Stimulation by either the sympathetic or parasympathetic nerves causes pacemaker cells in the SA node to depolarize more slowly.
• E)The nervous system does not directly affect the heart rate.

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Definitions:

Descriptive Statistics

The branch of statistics that deals with the summarization and description of the main features of a collection of data.

Inferential Statistics

The branch of statistics that focuses on drawing conclusions about a population based on a sample drawn from it.

Longest Processing Time

A scheduling strategy in which tasks are prioritized based on those requiring the most time to complete.

Scheduling

The process of arranging, controlling, and optimizing work and workloads in a production process or manufacturing operation to meet deadlines or objectives.