The Flattening of the Action Potentials of Myocardial Contractile Cells

question 30

Multiple Choice

The flattening of the action potentials of myocardial contractile cells, called the plateau phase, is due to a combination of ________ K⁺ permeability and ________ Ca²⁺ permeability.

• A) increasing, increasing
• B) decreasing, decreasing
• C) increasing, decreasing
• D) decreasing, increasing

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Definitions:

Equal Alternatives

A scenario where all available options are considered to be of equal value or utility.

Battery

In legal terms, the act of causing physical harm to another person without their consent.

Bacterial Infection

A harmful colonization of the body by bacteria that can lead to disease conditions.

Frequency

The rate at which a repeating event occurs, often measured in cycles per unit of time.