Surgery Dr Q: Cardiovascular Part 1

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Author:
Kristenw
ID:
293515
Filename:
Surgery Dr Q: Cardiovascular Part 1
Updated:
2016-01-26 19:54:30
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Cardiovascular
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Dr Q Cardiovascular
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  1. How many chambers of the heart are there?
    4
  2. Top left and right chambers are called what?
    Atria
  3. Bottom left and right chambers are called what?
    Ventricles
  4. Each atrium has an extension called what?
    Auricles
  5. Two group names for the chambers of the heart
    • Atrio-ventricular valves
    • Semi-lunar valves
  6. Atrio-Ventricular valves
    • Tricuspid valve (R)
    • Mitral valve (L)
  7. Semi-lunar valves
    • Pulmonary valve (R)
    • Aortic valve (L)
  8. Semi-lunar vales AKA
    Arterial valves
  9. Why is there only chordae tendineae in the ventricles?
    The contraction pressure produced by the ventricles of the AV valves could be averted into the atria but the chordae tendineae prevents this by being attached to the free ends of the margin of the cusps at one end and to the papillary muscles at the other end that extend from the myocardium
  10. Systole AKA
    • Contraction
    • Depolarization
  11. Diastole AKA
    • Relaxation
    • Repolarization
  12. One layer thick squamous endothelial cells, line up side by side with a thin slit provided for diffusion of dissolved substances in plasma
    Capillaries
  13. Thin slit in capillaries that allows for molecules to pass through
    Intercellular cleft
  14. Movement through the intercellular clefts is called what
    Diapedesis
  15. During the 24-48 hours after birth what happens to the clefts in the capillaries?
    Simple squamous endothelial cells of the capillaries dilate and allow antibodies and larger molecules to pass through the intercellular clefts
  16. Where are valves found
    • Heart
    • Veins
    • Lymphatics
  17. Muscles with greatest contractibility from greatest to least
    • Cardiac
    • SkeletalĀ 
    • Smooth
  18. Atrial portion has the higher frequency of contraction resulting in what?
    Fibrillations
  19. When fibrillation's occur what to administer?
    Lidocaine without epinephrine
  20. Stimulus for the contraction of both the atria and ventricles
    SA node AKA pacemaker
  21. Circulatory system where pressure originates from the right ventricle with blood circulating though the lungs and air passages
    Pulmonary system
  22. Circulatory system that carries blood that has returned from the lungs to all areas of the body
    Systemic circulation
  23. Departs from usual pattern of circulation
    Portal System

    • Examples:
    • HepaticĀ 
    • RenalĀ 
    • Hypophyseal
  24. Liver filters blood through the hepatic portal system using what cells to phagocytize and remove harmful substances
    Kupffer cells
  25. Fluid that is filtered by the lymph nodes and liver empties into this vein
    Azygous vein and enters vein-arterial circulation again
  26. Lymph nodes contain clusters of stem cells that reproduce to form what two things?
    Plasma and T cells
  27. Second largest lymph organ
    Spleen
  28. 3 functions of the spleen
    • Lymphocyte production
    • Lymphocyte filtration
    • Retired RBC go to be lysed
  29. What happens in the spleen that causes PCV to increase up to 10%
    Contraction of spleen causes restored RBC to insert circulation
  30. Initiates contraction frequency of the heart muscles
    SA node
  31. Sequence of events that occur during one complete heart beat
    Cardiac cycle
  32. Relaxation of the heart chamber prior to and during filling of the chamber
    Diastole
  33. Contraction of the heart chamber in the process of emptying
    Systole

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