About this document
Understanding the Cardiac Cycle by hmmtoerr is a document available to read on EtoBox.
The cardiac cycle encompasses all electrical and mechanical events during a single heartbeat, including changes in pressure, flow, and volume within the heart. It consists of phases such as atrial systole, isovolumetric contraction, and rapid ejection, followed by diastole, where the heart relaxes and fills with blood. The cycle is initiated by an action potential from the sinus node, allowing the atria to contract before the ventricles, ensuring efficient blood flow.
- Author
- hmmtoerr
- Language
- EN