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单词 Diastolic phase
释义

Diastolic phase

英语百科

Diastole

Heart during ventricular diastole.
Wiggers diagram, showing various events during diastole (duration marked at bottom).

Diastole /dˈæstəl/ is the part of the cardiac cycle when the heart refills with blood following systole (contraction). Ventricular diastole is the period during which the ventricles are filling and relaxing, while atrial diastole is the period during which the atria are relaxing. The term diastole originates from the Greek word διαστολη, meaning dilation. Diastole is closely related to the phenomenon of recoil within ballistics.

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