Examlex
Which bone is a part of the axial skeleton?
QRS Complex
A series of deflections in an electrocardiogram (ECG) representing ventricular depolarization before the main pumping action of the heart.
Atrial Repolarization
The process where atrial muscle cells return to their resting state during the cardiac cycle.
Cardiac Cycle
Refers to the complete heart beat from its generation to the beginning of the next beat, encompassing the contraction and relaxation phases of the heart.
Atria
The two upper chambers of the heart, which receive blood from the veins and pump it to the ventricles.
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