The Heart

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  • Created by: Jxss.lx
  • Created on: 10-06-18 13:01
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  • The Heart
    • Double circulatory system
      • Blood passes through the heart twice on each circuit
    • 4 chambers
      • Atria
        • Right atrium
          • Receives deoxgenated blood
            • From vena cava (body)
          • Contains pacemaker
        • Left
          • Receives oxygenated blood
            • From pulmonary vein (lungs)
      • Ventricles
        • Right ventricle
          • Receives deoxygenated blood from right atrium
            • Contracts to push blood through pulmonary artery
              • To lungs
        • Left ventricle
          • Receives oxygenated blood from left atrium
            • Contracts to push blood through aorta to body
    • Valves
      • Makes sure blood flows in right direction
      • Makes the 'thump' of heartbeat
    • Pacemaker
      • Controls resting heart rate
      • Group of cells
        • In right artrium
      • Artificial
        • Electrical device
          • To fix irregular heartbeats
    • Blood enters heart from veins
      • Travels to artria
        • To ventricles
          • Contract
            • Push blood out of heart
      • Push blood out of heart
  • Blood enters heart from veins
    • Travels to artria
      • To ventricles
        • Contract

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