Clinical Attribute
diastole Audio
di·as·to·le [ dahy-as-tl-ee, -tl-ee ]
Subclass of:
Muscle relaxation phase; Myocardial Contraction
Etymology:
Greek dia = apart + stellein = to send
Hence to dilate or spread.
Definitions related to diastole:
  • Post-systolic relaxation of the HEART, especially the HEART VENTRICLES.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • The relaxation phase of the normal heart cycle.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • The widening of the chambers of the heart between two contractions when the chambers fill with blood.
    NCI
    U.S. National Cancer Institute, 2021
  • Diastole, in the cardiac cycle, period of relaxation of the heart muscle, accompanied by the filling of the chambers with blood. Diastole is followed in the cardiac cycle by a period of contraction, or systole, of the heart muscle. Initially both atria and ventricles are in diastole, and...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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