The electrical signal signals muscle cells

The electrical signal signals muscle cells to contract. b. Results from atrial depolarization and initiates contraction of the atria. c. Results from ventricular repolarization. d. The straight line on the ECG. It is the point of departure of the electrical activity of depolarizations and repolarizations of the cardiac cycles. e. The electrical signal that results from muscle cell ion concentrations “resetting” during relaxation. f. Results from ventricular depolarization and initiates ventricular contraction. g. Depolarization followed by repolarization: the electrical signals that cause the mechanical pumping contraction of heart muscle cells. s inside the blood vessel 5, secondary roads, and aller arteries and then as that finally empty into es and return the blood and branch through the capillaries are the side walls that exchange bet stem of roads, the vascu eart