Random Phys

  1. whistling noise during systole
    aortic or pulmonary stenosis
  2. whistling sound during diastole
    stenotic AV valve
  3. swishy sound during systole
    insufficent AV valve
  4. swishy sound during diastolic
    insufficient aortic or pulmonary valve
  5. myocardial fibers contract in a disorganized manner
  6. less serious but still requires treatment
    atrial fibrillation
  7. life-threatening-lack of blood supply to provide enough O2 to the brain
    ventricular fibrillation
  8. part of the ECG that represents atrial depolarization (precedes atrial contraction)
    P wave
  9. what does an extra P wave before QRS indicate?
    partial block
  10. what does it mean when the p wave and QRS wave are completely dissociated (more P waves than QRS complexes)
    it indicated a complete block
  11. part of the ECG that indicates rapid depolarization of the ventricles and the simultaneous repolarization of the atria
    QRS complex 

    *they have a large muscle mass so the amplitude is larger
  12. ECG segment that is from the beginning of the QRS complex to the end of the T wave
    QT interval
  13. what is prolonged (long) QT a risk for?
    tachyarrhythmias and sudden death
  14. indicated AV node delay
    PR segment
  15. indicates time during which ventricles are contracting and emptying
    ST segment
  16. ventricle repoarlization
    T wave
  17. time during which ventricles are relaxing and filling
    TP interval
  18. type of gap junction in cardiac cells
    Connexon 43
  19. shorter distances between QRS complex
    tachycardia (HR >100 bpm)
  20. longer distances between QRS complex
    bradycardia (HR <60 bpm)
  21. impulses between atria and ventricle are interrupted
    heart block
  22. the blood in the ventricle at the end of diastole
    end diastolic volume (EDV)
  23. what is the average EDV
    ~135 ml
  24. the amount of blood left in the ventricle at the end of systole when ejection is complete is the
    end systolic volume (ESV)
  25. whats the average ESV
    ~70 ml
  26. The S1 (lubb) sound corresponds to
    the blood turbulence associated with the AV valve closing (signals the onset of ventricular  systole)
  27. the S2 (dubb) sound corresponds to
    the blood turbulence associated with the SL valves closing at the end of ventricular systole (signals the onset of ventricular diastole)
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Random Phys