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Cardiovascular System

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Cardiovascular System

  1. 1. Cardiovascular System <ul><li>Made of heart, blood, blood vessels </li></ul><ul><li>Blood vessels include </li></ul><ul><ul><li>Arteries = carry oxygen rich blood away from heart, to body </li></ul></ul><ul><ul><li>Veins = carry oxygen poor blood to heart, away from body </li></ul></ul><ul><ul><li>Capillaries = smallest vessels allow for exchange of oxygen and carbon dioxide to cells </li></ul></ul>
  2. 2. Blood Functions <ul><li>Exchange oxygen and carbon dioxide </li></ul><ul><li>Fight infection and clot </li></ul><ul><li>Maintain blood pressure </li></ul><ul><li>Regulate body temperature </li></ul>
  3. 3. Aorta Vena Cava Vena Cava Septum Left Atrium Left Ventricle Right Ventricle Right Atrium Pulmonary Artery Pulmonary Veins Tricuspid Valve Bicuspid Valve Pulmonary Valve
  4. 4. Valves in Veins <ul><li>Prevent backflow of blood in body. </li></ul><ul><li>Found in heart and veins </li></ul><ul><li>Why veins </li></ul><ul><li>(Blood returns to heart against gravity so backflow must be prevented) </li></ul>
  5. 5. Artery Walls <ul><li>Thick, elastic and muscular </li></ul><ul><li>Must withstand high blood pressure from pumping of heart </li></ul>
  6. 6. Path of Blood <ul><li>Vena Cava (Deoxygenated Blood) </li></ul><ul><li>Right Atrium (Deoxygenated Blood) </li></ul><ul><li>Right Ventricle (Deoxygenated Blood) </li></ul><ul><li>Pulmonary Artery (Deoxygenated Blood) </li></ul><ul><li>Lungs (Mixed Blood) </li></ul><ul><li>Pulmonary Vein (Oxygenated Blood) </li></ul><ul><li>Left Atrium (Oxygenated Blood) </li></ul><ul><li>Left Ventricle (Oxygenated Blood) </li></ul><ul><li>Aorta (Oxygenated Blood) </li></ul><ul><li>Body Capillaries (Mixed Blood) </li></ul>
  7. 7. Cardiovascular Problems <ul><li>Artherosclerosis: Cholesterol blocks vessels </li></ul><ul><li>Hypertension: High BP could cause chest pain and heart attack </li></ul><ul><li>Stroke: Blood vessel in brain becomes clogged or ruptures </li></ul><ul><li>Heart Attack: Blocking of blood vessel to heart causing heart cell death </li></ul><ul><li>Heart Failure: Heart cannot pump enough blood to meet body needs </li></ul>

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