Wiggers Diagram, Cardiac Cycle, ECG, and Heart Sounds

Wiggers Diagram, Cardiac Cycle, ECG, and Heart Sounds

Practice Wiggers-diagram interpretation, cardiac-cycle phases, ECG timing, valve events, heart sounds, pressure-volume relationships, stroke volume, cardiac output, and ejection fraction.

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28 questions ready

Start with a quiz

Answer from memory first, then review the rationales and revisit weak areas from this course.

Activities

Quiz28 Questions
Flashcards24 Cards
Study Notes2 Notes

List of Questions28 questions
  1. Question 1
    • Atrial depolarization
    • Ventricular depolarization
    • Ventricular repolarization
    • Atrioventricular valve closure
  2. Question 2
    • P wave
    • QRS complex
    • T wave
    • PR segment only
  3. Question 3
    • P wave
    • QRS complex
    • T wave
    • S1 heart sound
  4. Question 4
    • Contraction always occurs before depolarization
    • Valve opening creates the QRS complex
    • Repolarization begins after filling is complete
    • Depolarization occurs before contraction
  5. Question 5
    • Mitral and tricuspid valves
    • Aortic and pulmonary valves
    • Only the aortic valve
    • All four valves open
  6. Question 6
    • Both AV valves are open
    • All four valves are closed
    • Both semilunar valves are open
    • Only the mitral valve is open
  7. Question 7
    • Ventricular pressure is zero
    • The atria stop receiving blood
    • No ventricular valve is open for inflow or outflow
    • The ventricles have already emptied completely
  8. Question 8
    • Left atrial pressure exceeds ventricular pressure
    • The mitral valve opens after S2
    • The P wave closes the aortic valve
    • Left ventricular pressure exceeds aortic pressure and the aortic valve opens
  9. Question 9
    • Aortic and pulmonary semilunar valves
    • Mitral and tricuspid valves
    • All four valves
    • No valves
  10. Question 10
    • Opening of the semilunar valves
    • Closure of the atrioventricular valves
    • Closure of the semilunar valves
    • Rapid passive ventricular filling
  11. Question 11
    • Opening of the AV valves
    • Closure of the AV valves
    • Closure of the semilunar valves
    • Atrial depolarization
  12. Question 12
    • AV valve opening
    • Atrial contraction
    • Semilunar valve opening
    • Semilunar valve closure
  13. Question 13
    • All four valves are closed
    • Both AV valves are open
    • Both semilunar valves are open
    • All four valves are open
  14. Question 14
    • Ventricular pressure exceeds aortic pressure
    • Ventricular pressure falls below atrial pressure
    • Atrial pressure falls below ventricular pressure
    • The QRS complex ends
  15. Question 15
    • AV valves closed and semilunar valves open
    • All valves closed
    • AV valves open and semilunar valves closed
    • All valves open
  16. Question 16
    • Mitral valve opening
    • Atrial systole
    • Pulmonary valve opening only
    • Aortic valve closure
  17. Question 17
    • Just before ventricular contraction and ejection
    • Immediately after ejection
    • Halfway through isovolumetric relaxation
    • Only during the T wave
  18. Question 18
    • Blood entering an atrium each minute
    • Blood remaining in a ventricle after systole
    • Maximum ventricular volume before contraction
    • Blood ejected by both ventricles combined
  19. Question 19
    • ESV minus EDV
    • EDV plus ESV
    • EDV minus ESV
    • Heart rate divided by EDV
  20. Question 20
    • 55 mL
    • 125 mL
    • 180 mL
    • 70 mL
  21. Question 21
    • Heart rate multiplied by stroke volume
    • Heart rate divided by stroke volume
    • EDV minus heart rate
    • Stroke volume divided by ESV
  22. Question 22
    • 0.525 L/min
    • 5.25 L/min
    • 52.5 L/min
    • 145 mL/min
  23. Question 23
    • EDV divided by stroke volume
    • ESV divided by EDV, multiplied by 100%
    • Stroke volume divided by EDV, multiplied by 100%
    • Cardiac output divided by heart rate twice
  24. Question 24
    • 40%
    • 72%
    • 192%
    • 60%
  25. Question 25
    • Ventricular volume decreases
    • Ventricular volume stays at EDV
    • Both AV valves open
    • Aortic pressure must remain zero
  26. Question 26
    • Ventricular ejection
    • Isovolumetric relaxation
    • Atrial systole
    • Passive ventricular filling
  27. Question 27
    • Ventricular ejection
    • Late ventricular filling
    • Isovolumetric contraction
    • Atrial diastole alone
  28. Question 28
    • T wave is followed by AV valve opening and S1
    • P wave directly opens semilunar valves and creates S2
    • S2 occurs before semilunar valves close
    • QRS is followed by ventricular contraction, AV valve closure, and S1
List of Flashcards24 flashcards
  1. Card 1Wiggers Diagram and Cardiac Cycle
  2. Card 2Wiggers Diagram and Cardiac Cycle
  3. Card 3Wiggers Diagram and Cardiac Cycle
  4. Card 4Wiggers Diagram and Cardiac Cycle
  5. Card 5Wiggers Diagram and Cardiac Cycle
  6. Card 6Wiggers Diagram and Cardiac Cycle
  7. Card 7Wiggers Diagram and Cardiac Cycle
  8. Card 8Wiggers Diagram and Cardiac Cycle
  9. Card 9Wiggers Diagram and Cardiac Cycle
  10. Card 10Wiggers Diagram and Cardiac Cycle
  11. Card 11Wiggers Diagram and Cardiac Cycle
  12. Card 12Wiggers Diagram and Cardiac Cycle
  13. Card 13Wiggers Diagram and Cardiac Cycle
  14. Card 14Wiggers Diagram and Cardiac Cycle
  15. Card 15Wiggers Diagram and Cardiac Cycle
  16. Card 16Wiggers Diagram and Cardiac Cycle
  17. Card 17Wiggers Diagram and Cardiac Cycle
  18. Card 18Wiggers Diagram and Cardiac Cycle
  19. Card 19Wiggers Diagram and Cardiac Cycle
  20. Card 20Wiggers Diagram and Cardiac Cycle
  21. Card 21Wiggers Diagram and Cardiac Cycle
  22. Card 22Wiggers Diagram and Cardiac Cycle
  23. Card 23Wiggers Diagram and Cardiac Cycle
  24. Card 24Wiggers Diagram and Cardiac Cycle