KROK 1 2014 – Question 11 · KROK (Medicine) · Physiology
An animal experiment is aimed at studying the cardiac cycle. All the heart valves are closed. What phase of the cycle is characterized by this status?
- A. Reduced filling
- B. Rapid filling
- C. Asynchronous contraction
- D. Protodiastolic period
- E. Isometric contraction
Hint
Compare the pressure in the ventricle with the pressure in the atrium and in the aorta in each phase, and see which phase leaves both pairs of valves shut.
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