Myocardial Cells Exhibit a Plateau Phase Instead of Quickly Repolarizing

question 52

Multiple Choice

Myocardial cells exhibit a plateau phase instead of quickly repolarizing.This is due to

• A)inward diffusion of calcium through slow Ca²⁺ channels.
• B)inward diffusion of sodium through fast Na⁺ channels.
• C)inward diffusion of potassium through voltage-gated K⁺ channels.
• D)outward pumping of sodium by the Na⁺/K⁺ pump.

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Definitions:

Natural Causes

Death or changes occurring due to the internal processes of the natural world or the body, not influenced by external forces such as accidents or violence.

Bodily Fluids

Liquids within the human body that support its function, such as blood, saliva, and urine.

Designed Function

The intended purpose or role that something is created or expected to perform.

Statistical Deviation

The measure of the dispersion or variation in a set of data points, indicating how much individual data points differ from the mean or average value.