Phases of the cardiac cycle
- Created by: darkest_soul
- Created on: 18-05-19 14:35
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- Phases of the cardiac cycle
- Atrial systole
- 1. atria contract
- 2. Ventricles are relaxed
- 3. AV valves open; semilunar valves close
- 4. Sphincter muscles in vena cava and pulmonary vein contract.
- 3. AV valves open; semilunar valves close
- 2. Ventricles are relaxed
- 1. atria contract
- Ventricular systole
- 1. Ventricles contract
- 2. Atria are relaxed.
- 3. AV valves are closed; semilunar valves open
- 2. Atria are relaxed.
- 1. Ventricles contract
- Diastole
- 1. Ventricles are relaxed
- 2. Atria are relaxed
- 3. AV valves open; semilunar valves close
- 2. Atria are relaxed
- 1. Ventricles are relaxed
- Atrial systole
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