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:

Autocracies

Forms of government where power is concentrated in the hands of a single individual or a small group, with little to no participation or opposition from the populace.

Support

Assistance or backing provided by an individual or group to another, often implying emotional, financial, or physical help.

Social Institutions

Established sets of norms and structures that guide society, including family, religion, education, and the economy.

Authoritarian

A governing system in which a single leader or party holds significant control over most aspects of public and private life.