lab quiz for 4/4/13

Card Set Information

Author:
yourmomhaslice
ID:
210963
Filename:
lab quiz for 4/4/13
Updated:
2013-04-03 21:19:46
Tags:
lab quiz breathin
Folders:

Description:
this coming lab quiz on diving experiment 4/4/13
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user yourmomhaslice on FreezingBlue Flashcards. What would you like to do?


  1. Bradycardia
    A slowing of the heart rate
  2. A slowing of the heart rate
    bradycardia
  3. Systole
    the contraction phase of the atria and ventricle (depolarization leads to contraction)
  4. the contraction phase of the atria and ventricle (depolarization leads to contraction)
    systole
  5. diastole
    events of ventricular relaxation (repolarization leads to relaxation)
  6. events of ventricular relaxation (repolarization leads to relaxation)
    Diastole
  7. Depolarization
    • leads to contraction
    • first travels across right and left atria from SA node
    • is then carried to the ventricles
  8. leads to contractionfirst travels across right and left atria from SA node is then carried to the ventricles
    Depolarization
  9. Repolarization
    • leads to relaxation
    • this happens during diastole
  10. leads to relaxation
    this happens during diastole
    Repolarization
  11. SA Node (Pacemaker)
    • A single region of cells that regulates cycle.
    • Located in right atrium
    • - stimulates cardiac cycle by sending depolarization signal to atria
  12. AV Node
    • located in the base of the right atrium.
    • sends signal from atrium to ventricles
  13. located in the base of the right atrium.
    sends signal from atrium to ventricles
    AV Node
  14. P wave
    Represents the initial depolarization of the SA node. first tiny wave
  15. Represents the initial depolarization of the SA node. first tiny wave
    P wave
  16. QRS Complex
    • Depolarization of the ventricles
    • big
  17. Depolarization of the ventricles
    big
    QRS Complex
  18. T wave
    The line that represents the start of repolarization, immediately after depolarization takes place. final small wave
  19. The line that represents the start of repolarization, immediately after depolarization takes place. final small wave
    T wave
  20. Electrocardiogram (EKG / ECG)
    A graph that shows the electrical activity from the heart. (Detects systole and diastole)
  21. A graph that shows the electrical activity from the heart (detects systole and diastole)
    Electrocardiogram (EKG/ECG)
  22. myocardial cells
    Cells that make up the heart muscle.
  23. Cells that make up the heart muscle.
    Myocardial cells
  24. A single region of cells that regulates cycle.Located in right atrium- stimulates cardiac cycle by sending depolarization signal to atria.
    SA Node
  25. Steps of the cardiac cycle
    • Stimulation (depolarization signal) sent
    • from pacemaker (SA node) to right and left atria.
    • Atrial Systole The two atria depolarize and contract simultaneously; blood sent to ventricles
    • Depolarization signal sent from AV node to
    • ventricles.
    • Ventricular Systole The two ventricles depolarize and contract simultaneously; sends blood into pulmonary artery and aorta →pulmonary and systemic circulatory systems.
    • Atrial/Ventricular Diastole The heart chambers become repolarized and relax; atria refill with blood
  26. p wave - 1st tiny wave
    QRS Complex - big mother fucker
    T wave - final little wave
  27. Tachycardia
    Heart beats quickly
  28. Heart beats quickly
    Tachycardia
  29. Left atrium
  30. Ventricular systole
    Ventricular contraction (leads to increase in pressure within both ventricles.)
  31. Ventricular contraction (leads to increase in pressure within both ventricles.)
    Ventricular systole
  32. Ventricular diastole
    • the ventricles are relaxing.
    • the pressure drops from the peak that it reaches in systole.
  33. the ventricles are relaxing.the pressure drops from the peak that it reaches in systole.
    Ventricular diastole
  34. atrial (top portion)of the heart is not beating, it's at rest
    Atrial diastole
  35. Atrial diastole
    atrial (top portion)of the heart is not beating, it's at rest
  36. Atrial systole
    The Atrial is contracting
  37. The Atrial is contracting
    Atrial Systole
  38. Right Atrium
    • located at the top left of heart
    • houses the Sa node (top leftish)
    • and the AV node (bottom right)
  39. located at the top left of hearthouses the Sa node (top leftish)and the AV node (bottom right)
    Right atrium
  40. process of electrical activation (easier)
    • 1. SA node sends signal
    • 2. signal spreads over atria, atria contract (pwave)
    • 3. Signal delays at AV node
    • 4. Signal spreads to ventricles, they contract (QRS Complex)
    • 5. Ventricles relax

What would you like to do?

Home > Flashcards > Print Preview