If cardiac muscle cells are unable to repolarize, this would cause

A) cardiac output to increase.
B) no harm. These cells can spontaneously depolarize anyway.
C) the heart rate to decrease. It might cause cardiac arrest.
D) an increased demand on mitochondria to produce more ATP.
E) tachycardia.

Repolarize

A process by which a cell restores its negative internal charge relative to the outside, typically after an action potential in neurons.

Cardiac Muscle Cells

Specialized muscle cells found in the heart that are responsible for the heart's contraction, enabling it to pump blood throughout the body.

Cardiac Output

The volume of blood pumped by the heart per minute, a key measure of cardiovascular health and function.