What Is the Cardiac Cycle

question 21

Multiple Choice

What is the cardiac cycle?

• A) The passage of electrical impulses from the AV node to the SN node to heart muscle
• B) The alternating relaxation and contraction of the heart chambers
• C) The movement of blood from systemic to pulmonary circulation
• D) The movement of blood from the heart to the lungs and then back to the heart

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Definitions:

Lump-sum Tax

A fixed tax amount not dependent on the taxpayer's income level or financial transactions.

Economic Efficiency

A state where every resource is optimally allocated to serve each individual or entity in the best way while minimizing waste and inefficiency.

Incentives

Incentives are rewards or penalties that motivate individuals or entities to act in a certain way, often used to influence economic behavior and decision-making.

Ability-to-pay Principle

A tax design principle that suggests taxes should be levied according to an individual's or entity's ability to bear them.