Heart/Circulation

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Author:
esellers
ID:
214555
Filename:
Heart/Circulation
Updated:
2013-04-19 21:06:41
Tags:
Heart Circulation
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Description:
Heart, circulation
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  1. In the heart, one way traffic of blood is maintained by _____ (#) valves.
    4
  2. When the valve flaps become stiff,_____ (disease) occurs.
    Stenosis
  3. Influx of Na ions into muscle cell causes the _____ of action potential.
    Rise
  4. The actual spike of the potential is due to influx of ______ ions.
    Calcium
  5. Excitation sequence in the heart is started by_____.
    SA node
  6. Ectopic focus can be caused by _______.
    Bad pacemaker
  7. ______ transports cholesterol to tissue cells.
    LDL
  8. Norephinephrine______blood vessels.
    Constricts
  9. Incompetent valves making veins dilated and torturous are called _____ veins.
    Varicose
  10. Histamine ______ blood vessels.
    Dilates
  11. Heart is covered by a double walled fibro-serous sac called ______.
    Pericardium
  12. Hyposecretion of pericardial fluid leads to_____.
    Pericarditis
  13. Walls of atria has combo like muscles called _____ muscles.
    Pectinate
  14. Intratrial septum has a depression called _______.
    Fossa ovalis
  15. Right ventricle pumps blood to_________.
    Pulmonary
  16. Internal walls of ventricle has muscular ridges called ______.
    Trabeculae cornae
  17. The valve which has 3 cusps is _______.
    Tricuspid
  18. The valve which resembles a Bishop miter is _______.
    Bicuspid
  19. Left ventricle pumps blood to the ______.
    aorta
  20. ______ are white collagen cords attached to the valves also called as heart strings.
    Chordae tendinae
  21. Deficiency of blood delivery to myocardium results in _______.
    Angina Pectoris
  22. Prolonged coronary blockage leads to _____.
    myocardial infarction
  23. Resting membrane potential of cardiac muscle is ______ mv.
    -90
  24. Cardiac muscles are different from striated muscles by having a distinctive feature_______.
    Intercalated discs
  25. Resting stage of action potential is facilitated by influx of ______ ions.
    Potassium
  26. Irregular heart rhythms leads to _______
    Arrythmia
  27. Irregular contractions of the heart are called _______.
    Fibrillations
  28. Epinephrines cause ______ in skeletal and cardiac muscle.
    Vasodialation
  29. The smallest wave of a normal ECK is _____ wave.
    Q
  30. Ventricular repolarization leads to formation of ______ wave.
    T
  31. Systole refers to _____phase of the heart.
    Contraction
  32. Diastole refers to ______ phase of the heart.
    Relaxation
  33. The heart sounds Lub-Dup are the sounds associated with ______ valves.
    Closing
  34. If Vagus nerve connection to the heart is severed, the heart beat will ______.
    Speed up.
  35. Unidirectional valves are generally present in ______.
    Arteries
  36. Tunica ____ layer is thicker in veins when compared to arteries.
    Media
  37. Heart muscles receive oxygen from _____ circulation.
    Coronary
  38. The opening between the two atria and the fetus is called ______.
    Foramin ovlae
  39. Food lipoprotein that removes cholesterol from vessels and carries it to the liver is ______.
    HDL
  40. Difference between the systolic and diastolic pressure is called ______.
    Pulse

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