Podcast
Questions and Answers
During which phase of the cardiac cycle does the aortic and pulmonary valves open?
During which phase of the cardiac cycle does the aortic and pulmonary valves open?
Which ECG wave corresponds to ventricular repolarization?
Which ECG wave corresponds to ventricular repolarization?
What contributes to the completion of ventricular filling?
What contributes to the completion of ventricular filling?
What causes an increase in pressure but no change in volume during the cardiac cycle?
What causes an increase in pressure but no change in volume during the cardiac cycle?
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Study Notes
Cardiac Cycle
- Aortic and pulmonary valves open during the systole phase of the cardiac cycle.
ECG Waves
- The T wave corresponds to ventricular repolarization.
Ventricular Filling
- Ventricular filling is completed by the combination of atrial contraction and venous return.
Pressure and Volume Changes
- Isometric contraction causes an increase in pressure but no change in volume during the cardiac cycle.
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Description
Test your knowledge of Wiggers Diagram, which describes the sequence of events during a cardiac cycle. This includes phases such as atrial contraction and isovolumetric ventricular contraction.
