cardiovascular

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Author:
Hbottorff
ID:
282365
Filename:
cardiovascular
Updated:
2014-09-15 21:56:46
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  1. List the three circuits of blood flow
    • systemic circuit
    • pulmonary circuit
    • coronary system
  2. list the three coverings of the heart in order
    • fibrous pericardium
    • parietal pericardium
    • visceral pericardium (epicardium)
  3. list layers of the inner heart
    • epicardium
    • myocardium
    • endocardium
  4. list four chambers of the heart
    • L and R atria
    • L and R ventricles
  5. list the two receiving chambers of the heart (passive)
    atria
  6. list the two pumping chambers of heart (active)
    ventricles
  7. where is the tricuspid valve located
    right atrioventricular orfice
  8. where is the pulmonary valve
    entrance to pulmonary trunk
  9. where is the mitral valve located
    left atroventicular orfice
  10. where is the aortic valve located
    entrance to aorta
  11. what is the function of the chordeae tendonea
    keeps cusps of the tricuspid valve from swinging back in
  12. list the coronary arteries that supply blood to the heart
    aorta > R and L coronary artery > posterior interventricular artery, marignal artery, circumflex artery, anterior interventicular artery
  13. what part of the heart does right coronary artery supply
    right atrium and rt ventricles
  14. what part of the heart does the left coronary supply
    left atrium and left ventricle
  15. what causes the heart sounds
    • lubb occurs during ventricular systole when av valves close
    • dubb occurs during ventricular diastole when pulmonary and aortic valves are closing
  16. list the two functions of the av node
    provides conduction pathway between atria and ventricular synctia and delays transmission
  17. what is the pacemaker
    sa node
  18. ekg-depolarization of atrial fibers that lead to contraction
    p-wave
  19. produce deflection as re-polarization occurs
    t-wave
  20. this detects changes in bp, and balances pns and sns
    baroreceptors
  21. list the forces that affect the exchange of substance between capillaries and the tissue fluid
    • hydrostatic pressure
    • colloid osmotic pressure
    • BP
  22. list the three main determinants of stroke volume
    • preload
    • afterload
    • ventricular contraction
  23. what is the formula for cardiac output
    co=sv*hr
  24. what is the formula for stroke volume
    sv=edv-esv
  25. frank sterlings law of the heart
    the more stretch induced on the heart the greater the contraction
  26. what is the main source of preload
    edv and preload
  27. formula for bp
    bp= co* total peripheral resistance
  28. formula for resistance
    1/r4
  29. normal bp
    120/80
  30. 5 types of blood vessels
    • arteries
    • vessels
    • veins
    • capillaries
    • venules
  31. where is the splanchnic reservoir located
    abdominal cavity
  32. list 4 ways veins and arteries differ
    • veins dont constrict
    • veins o2 poor
    • arteries o2 rich

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