Card Set Information

2010-07-29 01:02:01

anatomy of heart
Show Answers:

  1. visceral pericardium
  2. tricuspid valve
  3. tricuspid valve
  4. trabeculae carneae
  5. t wave
  6. what are pectinate muscles where are they located?
    ridges of muscles located in both atria but more prominant in Left atria
  7. The inner wall separating R and L atrium?
    interatrial septum
  8. ridges of muscle in ventricles?
    trabeculae carneae
  9. papillary muscles
    finger like muscles in ventricles attached to chordae tendineae
  10. what structure attaches to papillary muscles in ventricles and is white in color?
    chordae tendieae
  11. what structures anchor the heart valves?
    papillary muscle and chordae tendineae
  12. wall between ventricles?
    interventricular septum
  13. why is the Left ventricle 5x thicker then right ventricle?
    because the right ventricle only has to pump blood to lungs, and the left ventricle has to push blood throughout body and so it needs to be stronger and use more force to get blood where it needs to go
  14. purpose of valves?
    to prevent back flow so blood only goes one direction
  15. what valve seperates atrium from ventricle?
    • on the Right side : tricuspid AV valve
    • on L side : bicuspid AV valve
  16. which valve is also called mitral valve?
    bicuspid AV valve
  17. where are aortic semilunar valve and pulmonary semilunar valve locate?
    • aortic semilunar leaves heart leading into aorta
    • pulmonary semilunar leaves heart into pulmonary trunk
  18. front of heart vs back of heart?
    • anterior view
    • pulmonary trunk is visible
    • ascending aorta is visible
    • posterior view
    • 4 pulmonary veins attached
  19. when blood backflows what is it called?
  20. what happens with diameter of chambers and shape of heart when left ventricle contracts?
    • 1) distance between apex and base decreases
    • 2) diameter of inside decreases
    • 3) bulges /push into right ventricle