The heart

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    • Deoxygenated blood from heart to lungs
    • Right atrium-->(tricuspid valve)-->right ventricle-->(pulmonary semi-lunar valve) pulmonary trunk-->pulmonary arteries-->capillaries(alveoli) in lungs
  2. heart view
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  3. Pericardium
    Covering of the heart
  4. Fibrous pedricardium
    Outer layer
  5. Visceral percardium
    Inner layer
  6. Parietal pericardium
    Middle layer
  7. Pericrdial cavity
    Space between the parietal and viseral pericardium
  8. Epicardium
    Outer layer(corresponds to the viseral pericardium)
  9. Myocardium
    Middle layer, the bulk of the heart
  10. Endocardium
    Inner layer
  11. Atria
    Upper chamber
  12. Ventricles
    AV valves between the atria and ventricles
  13. Tricuspid valve
    Between the right atrium and right ventricle. Prevents backflow of blood from the right ventricle into the right atrium
  14. Bicuspid valve
    Between the left atrium and left ventricle. Prevent back up of blood from the left ventricle into left atrium
  15. Pulmonary semi-lunar valve
    Prevents backflow of blood from the pulmonary trunk into the right ventricle
  16. Aortic semi-lunar valve
    Prevents backflow of blood from the aorta into the left ventricle
  17. blood supply to the heart
    blood is supplied to the heart by ways of the coronary artery. The first 2 branches of the aorta are the right and left coronary arteries
  18. heart sound
    • first sound: lub
    • second sound: dub
  19. conduction system
    SA node(corresponding to the pacemaker of the heart), AV node, AV bundle, purkinje fibers
  20. systolic pressure
    highest pressure in the heart when the ventricles are contracting. corresponds to 120 in a normal blood pressure
  21. diastolic pressure
    lowest pressure when the ventricles are relaxing. corresponds to the 80 in normal blood pressure. higher than normal blood pressure is called hypertension.
  22. electrocardiogram
    EKG/ECG used to determine the condition of the heart
  23. pathway of blood heart to lung
    deoxygenated blood from all body system-->through vena cava-->right atrium-->tricuspid valve-->right ventricle-->pulmonary trunk-->pulmonary artery-->lungs
  24. pathway of blood lung to heart
    oxygenated blood from the pulmonary veins to the left atrium-->semilunar valve-->left ventricle-->aortic semi-lunar valve-->aorta-->all body parts

Card Set Information

Author:
Wacklandre
ID:
13363
Filename:
The heart
Updated:
2010-04-10 02:09:27
Tags:
heart
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a & p
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