Cardiac cycle simplified!
3:00
YouTubeJohnson's Cardiology
Cardiac cycle simplified!
The cardiac cycle refers to the complete sequence of electrical and mechanical events that occur in the heart from the beginning of one heartbeat to the beginning of the next. In a healthy adult with a resting heart rate of 75 beats per minute, one complete cycle lasts approximately 0.8 seconds.
91 views3 weeks ago
Shorts
Each heartbeat is made up of two main sounds known as S1 and S2. In this video, you'll see exactly how the S1 sound corresponds to the closing of the mitral and tricuspid valves at the start of ventricular contraction, and how the S2 sound is produced when the aortic and pulmonary valves close as the ventricles relax. This high-precision animation is created by Dr. Bahaa to help medical students understand the exact timing and coordination of heart sounds with valve motion. It's also made easy f
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