cardiac cycle
- Created by: Yvie powe
- Created on: 08-05-13 12:47
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- Transport in animals: CARDIAC CYCLE
- cardiac cycle- heartbeat
- ATRIAL SYSTOLE
- 1. Right and left ventricles relax
- 2. Tricuspid + bicuspid valves OPEN, as atria CONTRACTS
- 3. Blood flows into the ventricles
- VENTRICULAR SYSTOLE
- 1.Atria Relax
- 2. R + L ventricles contract ---->
- Blood forced out of heart, into pulmonary artery and aorta
- Semi-lunar valves are open
- Blood forced out of heart, into pulmonary artery and aorta
- 3. Valves close
- 4. Pulmonary artery - DEOXYGENATED blood to LUNGS
- Aorta- OXYGENATED blood to BODY
- DIASTOLE
- 1. Ventricles relax
- Untitled
- ATRIAL SYSTOLE
- SYSTOLE- contract
- DIASTOLE- relax
- cardiac cycle- heartbeat
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