Examlex
The variable in a hypothesis that precedes or causes a change in the other variable in the hypothesis is called the _________ variable.
ECG
Electrocardiogram, a test that measures the electrical activity of the heart over a period of time.
Cardiac Cycle
refers to the sequence of events that occur in the heart during one beat, including the contraction (systole) and relaxation (diastole) periods.
Diastole
The phase of the heart cycle when the heart muscle relaxes and allows the chambers to fill with blood.
Ventricular Filling
The phase of the cardiac cycle in which the ventricles fill with blood, following diastole and before systole.
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