cardiac cycle

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  • 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
        • 3. Valves close
        • 4. Pulmonary artery - DEOXYGENATED blood to LUNGS
          • Aorta- OXYGENATED blood to BODY
      • DIASTOLE
        • 1. Ventricles relax
        • Untitled
    • SYSTOLE- contract
    • DIASTOLE- relax

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