Cardiac Cycle MCQ Quiz | Cardiovascular System

Welcome to the Cardiac Cycle MCQ Quiz, specifically designed for MBBS students to test and reinforce their understanding of cardiovascular physiology. This quiz covers the intricate sequence of events in the heart during a single beat, from atrial systole to ventricular diastole. You’ll encounter questions on heart sounds, pressure-volume loops, valvular function, and the correlation with ECG and JVP tracings. This assessment is an excellent tool for self-evaluation and exam preparation, helping you master the fundamental concepts that are crucial for clinical practice. After submitting your answers, you will receive your score and a detailed review of each question. You can also download all the questions with their correct answers in a PDF format for future reference and study.

1. The first heart sound (S1) is produced by the closure of which valves?

2. During which phase of the cardiac cycle are all four heart valves closed?

3. The dicrotic notch on the aortic pressure curve is caused by:

4. The ‘a’ wave in the Jugular Venous Pulse (JVP) corresponds to which mechanical event?

5. On an ECG, the QRS complex immediately precedes which mechanical event?

6. The mitral valve opens at the end of which phase?

7. In a normal Pressure-Volume loop, the stroke volume is represented by:

8. The third heart sound (S3) is associated with which event in the cardiac cycle?

9. End-diastolic volume (EDV) is the volume of blood in the ventricle at the end of:

10. The ‘c’ wave in the JVP is primarily caused by:

11. Which phase of the cardiac cycle consumes the most myocardial oxygen?

12. The second heart sound (S2) signifies the beginning of which phase?

13. Atrial fibrillation would most significantly impair which part of ventricular filling?

14. The P wave on an ECG corresponds to which mechanical event?

15. The ‘v’ wave of the JVP represents:

16. What is the approximate duration of a cardiac cycle at a heart rate of 75 beats per minute?

17. The lowest pressure in the aorta occurs:

18. Physiological splitting of the second heart sound (S2) is most prominent during:

19. Ventricular pressure is highest during which phase?

20. The period of diastasis refers to:

21. End-systolic volume (ESV) is the volume of blood remaining in the ventricle after:

22. The T wave on an ECG is mechanically associated with the onset of:

23. Which event occurs immediately after the mitral valve closes?

24. A fourth heart sound (S4), when present, is caused by:

25. During the rapid ejection phase, which of the following is true?

Author

  • G S Sachin Author Pharmacy Freak
    : Author

    G S Sachin is a Registered Pharmacist under the Pharmacy Act, 1948, and the founder of PharmacyFreak.com. He holds a Bachelor of Pharmacy degree from Rungta College of Pharmaceutical Science and Research and creates clear, accurate educational content on pharmacology, drug mechanisms of action, pharmacist learning, and GPAT exam preparation.

    Mail- Sachin@pharmacyfreak.com

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