5.
4.
1
2
1.8
decimal:
decima
80 %.
%:
%:

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks