The Cardiac Cycle

In this video, Leslie Samuel explains the cardiac cycle, detailing the events of a complete heartbeat. The tutorial covers the contraction and relaxation of the atria and ventricles, the role of the electrocardiogram (ECG), and the sounds associated with heartbeats. The video breaks down complex concepts like isovolumetric contraction and ejection phases, ventricular and atrial dynamics, and the phonocardiogram. It aims to make understanding the cardiac cycle easier and more engaging.

What occurs during the T wave of the electrocardiogram?

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What is the significance of ventricular filling in the cardiac cycle?

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How does the cardiac cycle begin again after one complete cycle?

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Describe the sounds associated with the heartbeat and their causes.

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