Which of the Following Statements Regarding Intrinsic Regulation of the Heart

question 23

Multiple Choice

Which of the following statements regarding intrinsic regulation of the heart is true?

• A)Stretching the SA node will decrease generation of action potentials in the node.
• B)Decreased venous return increases cardiac output.
• C)The heart's pumping effectiveness is greatly influenced by small changes in afterload.
• D)If cardiac muscle fibers are slightly stretched,they have a stronger contraction force.
• E)If cardiac muscle fibers are slightly stretched,they have a weaker contraction force.

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Definitions:

Allowance Account

A contra asset account that reduces the gross amount of receivables to reflect a more accurate value of expected collections.

Liability Account

An accounting record tracking obligations or debts that a company owes to others.

Credit Balance

Credit Balance refers to the amount of money that a company or individual has in their account that can credit against future purchases or borrowings.