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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Activities
Quiz28 Questions
Flashcards24 Cards
Study Notes2 Notes
Modules
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Start with the earlier modules and work forward. Each one builds on the last, so the course gets more advanced as you go.
1
Wiggers Diagram and Cardiac Cycle
Connect ECG events to pressure gradients, valve motion, ventricular volume, heart sounds, and output calculations.
Wiggers Diagram and Cardiac Cycle Study Guide
4 min • Summary
Sources, Rights, and Learning Scope
1 min • Summary
Wiggers Diagram and Cardiac Cycle Practice
Quiz • 28 Questions
Wiggers Diagram and Cardiac Cycle Key Facts
Flashcards • 24 Cards
Materials
List of Questions28 questions
- Question 1
- Atrial depolarization
- Ventricular depolarization
- Ventricular repolarization
- Atrioventricular valve closure
- Question 2
- P wave
- QRS complex
- T wave
- PR segment only
- Question 3
- P wave
- QRS complex
- T wave
- S1 heart sound
- Question 4
- Contraction always occurs before depolarization
- Valve opening creates the QRS complex
- Repolarization begins after filling is complete
- Depolarization occurs before contraction
- Question 5
- Mitral and tricuspid valves
- Aortic and pulmonary valves
- Only the aortic valve
- All four valves open
- Question 6
- Both AV valves are open
- All four valves are closed
- Both semilunar valves are open
- Only the mitral valve is open
- 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
- 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
- Question 9
- Aortic and pulmonary semilunar valves
- Mitral and tricuspid valves
- All four valves
- No valves
- Question 10
- Opening of the semilunar valves
- Closure of the atrioventricular valves
- Closure of the semilunar valves
- Rapid passive ventricular filling
- Question 11
- Opening of the AV valves
- Closure of the AV valves
- Closure of the semilunar valves
- Atrial depolarization
- Question 12
- AV valve opening
- Atrial contraction
- Semilunar valve opening
- Semilunar valve closure
- Question 13
- All four valves are closed
- Both AV valves are open
- Both semilunar valves are open
- All four valves are open
- Question 14
- Ventricular pressure exceeds aortic pressure
- Ventricular pressure falls below atrial pressure
- Atrial pressure falls below ventricular pressure
- The QRS complex ends
- Question 15
- AV valves closed and semilunar valves open
- All valves closed
- AV valves open and semilunar valves closed
- All valves open
- Question 16
- Mitral valve opening
- Atrial systole
- Pulmonary valve opening only
- Aortic valve closure
- Question 17
- Just before ventricular contraction and ejection
- Immediately after ejection
- Halfway through isovolumetric relaxation
- Only during the T wave
- 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
- Question 19
- ESV minus EDV
- EDV plus ESV
- EDV minus ESV
- Heart rate divided by EDV
- Question 20
- 55 mL
- 125 mL
- 180 mL
- 70 mL
- Question 21
- Heart rate multiplied by stroke volume
- Heart rate divided by stroke volume
- EDV minus heart rate
- Stroke volume divided by ESV
- Question 22
- 0.525 L/min
- 5.25 L/min
- 52.5 L/min
- 145 mL/min
- 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
- Question 24
- 40%
- 72%
- 192%
- 60%
- Question 25
- Ventricular volume decreases
- Ventricular volume stays at EDV
- Both AV valves open
- Aortic pressure must remain zero
- Question 26
- Ventricular ejection
- Isovolumetric relaxation
- Atrial systole
- Passive ventricular filling
- Question 27
- Ventricular ejection
- Late ventricular filling
- Isovolumetric contraction
- Atrial diastole alone
- 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
- Card 1Wiggers Diagram and Cardiac Cycle
- Card 2Wiggers Diagram and Cardiac Cycle
- Card 3Wiggers Diagram and Cardiac Cycle
- Card 4Wiggers Diagram and Cardiac Cycle
- Card 5Wiggers Diagram and Cardiac Cycle
- Card 6Wiggers Diagram and Cardiac Cycle
- Card 7Wiggers Diagram and Cardiac Cycle
- Card 8Wiggers Diagram and Cardiac Cycle
- Card 9Wiggers Diagram and Cardiac Cycle
- Card 10Wiggers Diagram and Cardiac Cycle
- Card 11Wiggers Diagram and Cardiac Cycle
- Card 12Wiggers Diagram and Cardiac Cycle
- Card 13Wiggers Diagram and Cardiac Cycle
- Card 14Wiggers Diagram and Cardiac Cycle
- Card 15Wiggers Diagram and Cardiac Cycle
- Card 16Wiggers Diagram and Cardiac Cycle
- Card 17Wiggers Diagram and Cardiac Cycle
- Card 18Wiggers Diagram and Cardiac Cycle
- Card 19Wiggers Diagram and Cardiac Cycle
- Card 20Wiggers Diagram and Cardiac Cycle
- Card 21Wiggers Diagram and Cardiac Cycle
- Card 22Wiggers Diagram and Cardiac Cycle
- Card 23Wiggers Diagram and Cardiac Cycle
- Card 24Wiggers Diagram and Cardiac Cycle