Polarization & Depolarization & Repolarization

Polarization is the _______ of three electrical changes that the myocardial cells experience.

first

Polarization is synonymous with

resting

Polarization, intracellular _______, and extracellular ______.

negative, positive

Depolarization is the _________ electrical change of cardiac cells.

second

Depolarization occurs when the cells are stimulated with all or none signals, causing a _____________.

mechanical myocardial contraction

This stage is called depolarization because the intracellular charge is changing to _________ as the sodium electrolytes rapidly move _______ into the cell.

positive, into

Depolarization is synonymous with

action potential

Repolarization is the _________ electrical change of the myocardial cell, and the _________ of the three stages.

third, longest

In repolarization the heart is returning to a state of ____________ charged potassium _________ the cell and sodium and calcium ________ charged ______ the cell.

negatively, inside, positively, outside

The heart utilizes a mechanism called a ________________ to help move the electrolytes to their original polarity.

sodium-potassium pump

Repolarization is synonymous with

resting and recovery