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2011-01-21 14:50:16
cardiovascular system

Chapter 5-Cardiovascular System
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  1. Cardiovascular system
    heart, blood vessels, and blood
  2. vascul
    blood vessels
  3. heart
    hollow, musclar organ located between the lungs. pump that furnishes the power to maintain the blood flow needed throughout the entire body.
  4. apex
    the lower end of the heart
  5. pericardium
    pericardial sac, double walled membranous sac that encloses the heart
  6. parietal pericardium
    tough outer layer that forms a fibrous sac that surrounds and protects the heart
  7. visceral pericardium
    inner layer of the pericardium, also the outer layer of the heart.
  8. pericardial fluid
    found between the two pericardium layers, where it acts as a lubricant to prevent friction when the heart beats
  9. epicardium
    external layer of the heart and the inner layer of the pericardium
  10. myocardium
    myocardial muscle, middle and thickets of the heart's 3 layers and consists of specialized cardiac muscle tissue
  11. endocardium
    consists of epithelial tissure, the inner lining of the heart
  12. coronary arteries
    supply oxygen rich blood to the myocardium
  13. atria
    2 upper chambers of the heart. Receiving blood, all blood vessels coming to the heart enter here
  14. interatrial septum
    separates the atria
  15. ventricles
    2 lower chambers of the heart. Pumping chambers, all blood vessels leaving the heart emerge from the ventricles
  16. tricuspid valve
    controls the opening between the right atrium and the right ventricle
  17. tricuspid
    having 3 cusps (points) This is the shape of the tricuspid valve
  18. pulmonary semiluner valve
    located between the right ventricle and the pumonary artery
  19. mitral valve
    bicuspid valve, located between the left atrium and left ventricle
  20. aortic semiluner valve
    located between the left ventricle and the aorta
  21. Blood through the heart
    right atrium->right ventricle ->left atrium->left ventricle->oxygen poor blood is returned by the venae cavae to the right atrium and the cycle continues
  22. Pulmonary Circulation
    flow of blood only between the heart and lungs
  23. pulmonary arteries
    carries deoxygenated blood out of the right ventricle and into the lungs
  24. pulmonary veins
    carry the oxygenated blood from the lungs into the left atrium of the heart