The Heart

brief description of the structure of the heart and its contents

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  • Created by: scary
  • Created on: 17-04-14 12:49
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  • The Heart
    • The Valves
      • Atrioventicular (AV) link the artia to the ventricles
      • Semi-Lunar (SL) link the ventricles to the pulmonary artery and aorta
      • Valves only open one way, they open according to the pressure behind a valve, if there's higher pressure behind a valve it will force it open, if pressure is higher at the front it will close
    • Right side
      • This side pumps deoxygenated blood to the lungs
      • The interior contains, right ventricle, an AV and SL, right atrium, inferior vena cava, pulmonary artery
      • the exterior consist of superior/inferior vena cava, aorta, right atrium, cornoary artery, right ventricle and the vena cava
    • Left side
      • This side pumps oxygenated blood to the rest of the body
      • The exterior consists of the pulmonary artery, left atrium, pulmonary veins and the left ventricle
      • The interior contains, aorta, pulmonary vein, left atrium, SL and AV valve, cords(valve tendons) and the left ventricle.
  • The Valves
    • Atrioventicular (AV) link the artia to the ventricles
    • Semi-Lunar (SL) link the ventricles to the pulmonary artery and aorta
    • Valves only open one way, they open according to the pressure behind a valve, if there's higher pressure behind a valve it will force it open, if pressure is higher at the front it will close
  • Thickness of chamber walls
    • The Heart
      • Right side
        • This side pumps deoxygenated blood to the lungs
        • The interior contains, right ventricle, an AV and SL, right atrium, inferior vena cava, pulmonary artery
        • the exterior consist of superior/inferior vena cava, aorta, right atrium, cornoary artery, right ventricle and the vena cava
      • Left side
        • This side pumps oxygenated blood to the rest of the body
        • The exterior consists of the pulmonary artery, left atrium, pulmonary veins and the left ventricle
        • The interior contains, aorta, pulmonary vein, left atrium, SL and AV valve, cords(valve tendons) and the left ventricle.
    • Heart is mainly cardiac muscle
    • the muscle of the atria is thin, as they do not need to create much pressure
    • the walls of the right ventricle are thicker than the walls of the atria, enabling it to pump blood out of the heart
    • The left ventricle has the thickest walls as this needs a lot of pressure in order to pump blood throughout the body

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