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| Q. |
Regarding the function of the heart: |
| A. | at increased heart rates, diastole is shortened more than systole |
| B. | the pericardial sac normally contains about 50ml of fluid |
| C. | during the cardiac cycle, left ventricular ejection begins before right ventricular ejection |
| D. | during expiration, the aortic valve closes before the pulmonary valve |
| E. | the end—diastolic ventricular volume is about 170ml |
| Answer» A. at increased heart rates, diastole is shortened more than systole | |
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