Term: diastole
Origin: Anc Greek
δια-/dia(=prefix meaning through, apart) > probably from the root δις/dis(=twice)
στέλνω/stelno(=send)
literally meaning “a drawing apart”
Definition:
Diastole is the the normal and rhythmic relaxation (dilatation) of the heart during which cavities fill with blood after systole (contraction).
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