BI-1162
The heart
Biology · Secondary 3 · Hard · The heart
In a cardiac cycle, atrial systole lasts 0.1 s and ventricular systole lasts 0.3 s. The remaining time in the cycle is diastole. If the heart rate is 75 beats per minute, what is the duration of diastole?
- 0.2 s
- 0.3 s
- 0.4 s
- 0.5 s
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