Cardiovascular System

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Author:
Cotton
ID:
120027
Filename:
Cardiovascular System
Updated:
2011-12-01 15:13:20
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Cardiovascular System
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Description:
Chapter 5 AP&T
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  1. Angi/o
    Vessel
  2. Aort/o
    Aorta
  3. Arteri/o
    Artery
  4. Arther/o
    Fatty substance
  5. Atri/o
    Atrium
  6. cardi/o
    heart
  7. coron/o
    heart
  8. hemangi/o
    blood vessel
  9. phleb/o
    vein
  10. sphygm/o
    pulse
  11. steth/o
    chest
  12. thromb/o
    clot
  13. valv/o
    valve
  14. valvul/o
    valve
  15. vascul/o
    blood vessel
  16. vas/o
    vessel, duct
  17. ven/o
    vein
  18. ventricul/o
    ventricle
  19. -manometer
    instrument to measure pressure
  20. -ole
    small
  21. -tension
    pressure
  22. -ule
    small
  23. Two parts of the circulatory system are...
    pulmonary & systemic circulation
  24. pulmonary circulation=
    • transports deoxygenated blood
    • from:
    • heart-->lungs-->heart
  25. systemic circulation=
    • carries oxygenated blood.
    • from:
    • heart-->tissues/cells-->heart
  26. endocardium
    • inner layer of the heart lining the heart chambers.
    • smooth, thin layer serves to reduce friction as blood passes through heart chambers.
  27. myocardium
    • thick muscular middle layer of heart.
    • contractions develop pressure to pump blood through blood vessels.
  28. epicardium
    • double-outer-layered plueral sac.
    • visceral pericardium: inner layer of sac
    • parietal pericardium: outer layer of sac
  29. four valves of the heart
    tricuspid, pulmonary, mitral(bicuspid) & aortic valve
  30. tricuspid=
    controls opening between the right atrium & right ventricle
  31. pulmonary valve=
    prevents blood ejected into pulmonary artery from returning to right ventricles as it relaxes.
  32. mitral (bicuspid) valve=
    blood flows through this atroventricular valve to the left ventricle and can't go back up the left atrium.
  33. aortic valve=
    blood leaves left ventricle through this valve and can't return to the left ventricle.
  34. The heart rate is regulated by the..
    autonomic nervous system
  35. electrical impulses begin where?
    the sinoatrial node (SA), or pacemaker.
  36. lumen=
    the channel within blood vessels through which blood flows.
  37. arterioles=
    smallest of the arteries, which deliver blood to capillaries.
  38. capillaries=
    are very thin walled & a network of tiny blood vessels or capillary bed.
  39. veins=
    carry blood back to the heart.
  40. venules=
    are small veins & blood leaving capillaries first enter these to then merge into larger veins.
  41. blood pressure (BP)=
    a measurement of the force exerted by blood against the wall of a blood vessel.
  42. systolic pressure=
    highest blood pressure reading
  43. diastolic pressure=
    lowest blood reading pressure

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