week 10

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  1. excitability p.823
    • a stimulus that depolarize myocardial tissue
    • also is its property
  2. bigeminy p.830
    happens every other beat
  3. trigeminy p.830
    happens every third beat
  4. flutter p.826
    recurring, regular sawtooth-shaped waves
  5. rhythm 822
    • regular, irregular
    • the normal cardiac rhythm when the heart is controlled by the atrioventricular node
  6. excitability
    the ability of the cardiac muscle to depolarize in response to a stimulus
  7. repolarization
    the cell returns to its resting stage
  8. automacity
    the ability of a cardiac cell to initiate an impulse
  9. conductivity
    the ability of the heart muscle to move an impulse over the entire muscle mass
  10. contractility
    the ability of the heart to contract
  11. refractoriness
    the heart's inability to respond to a stimulus
  12. amplitude
    in a phenomenon that occurs in waves, the maximal deviation of a wave from the baseline.
  13. asystole
    absence of heart muscle contraction
  14. atrial kick
    the priming force contributed by atrial contraction immediately before ventricular systole that acts to increase the efficiency of ventricular ejection due to acutely increased preload.
  15. cardioversion
    the process of restoring the heart's normal rhythm by applying a controlled electric shock to the exterior of the chest.
  16. conductivity
    The ability or power to conduct or transmit heat, electricity, or sound.
  17. contractility
    • a capacity for becoming short in response to suitable stimulus.
  18. defibrillation
    a process in which an electronic device sends an electric shock to the heart to stop an extremely rapid, irregular heartbeat, and restore the normal heart rhythm.
  19. depolarization
    the process or act of neutralizing polarity as in the decrease of membrane potential.
  20. fibrillation
    Rapid, uncoordinated contractions of the upper or the lower chambers of the heart.
  21. flutter
    rapid vibration or pulsation
Card Set:
week 10
2013-04-21 19:45:38

nursing vocabulary
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