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Encyclopedia > Diastole

Diastole is the period of time when the heart relaxes after contraction. Ventricular diastole is when the ventricles are relaxing, while atrial diastole is when the atria are relaxing.
Ventricular diastole

During ventricular diastole, the pressure in the (left and right) ventricles drops from the peak that it reaches in systole. When the pressure in the left ventricle drops to below the pressure in the left atrium, the mitral valve opens, and the left ventricle fills with blood that was accumulating in the left atrium.


  Results from FactBites:
 
Diastole definition - Medical Dictionary definitions of popular medical terms easily defined on MedTerms (320 words)
The final letter in "diastole" is pronounced as a long "e" as in "lee." The adjective for diastole is diastolic.
The diastolic pressure is specifically the minimum arterial pressure during relaxation and dilatation of the ventricles of the heart.
A diastolic murmur is a heart murmur heard during diastole, the time the heart relaxes.
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