Which of the Following Statements Are True of the Nervous

question 127

Multiple Choice

Which of the following statements are true of the nervous regulation of heart rate? (Read carefully and select all of the correct statements.)

• A)The cardiac centers are in the medulla of the brain.
• B)Only the sympathetic nervous system has nerves to the heart muscle.
• C)Heart rate changes in response to changes in blood pressure or blood gas levels.
• D)Sympathetic nerve fibers to the heart are part of the vagus nerves.
• E)The neurotransmitter norepinephrine decreases heart ratE
• F)The heart generates its own beat, but the neurotransmitter acetylcholine can increase the rate.

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Definitions:

Necessities

Goods and services that are essential for survival, such as food, shelter, and healthcare, often characterized by inelastic demand.

Luxuries

Goods or services that are considered non-essential but are desired for their ability to provide comfort, convenience, or pleasure.

Elasticity Of Supply

A measure of how much the quantity supplied of a good responds to a change in the price of that good.

Inputs

Resources used in the production process, including labor, capital, materials, and energy.