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.

---

Definitions:

Gifts

Items or funds given voluntarily without expectation of payment, often as a token of affection, appreciation, or for charitable reasons.

Social Welfare

Programs and policies designed to enhance the well-being and quality of life of individuals, especially those in need.

Nonprofit Organization

An organization that operates for educational, charitable, social, religious, or other activities serving the public interest without seeking to generate profits for owners or stakeholders.

Lobby

The act of trying to influence the decisions of policymakers or government officials, typically conducted by special interest groups.