Isovolumetric contraction

（重定向自Isovolumic contraction）

In cardiac physiology, isovolumetric contraction is an event occurring in early systole during which the ventricles contract with no volume change (isovolumetrically). This short-lasting portion of their contraction takes place during a moment when the heart valves are all closed.

单词	Isovolumic contraction
释义	Isovolumic contraction 英语百科 Isovolumetric contraction （重定向自Isovolumic contraction） In cardiac physiology, isovolumetric contraction is an event occurring in early systole during which the ventricles contract with no volume change (isovolumetrically). This short-lasting portion of their contraction takes place during a moment when the heart valves are all closed.
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