Isovolumetric Contraction

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In this video, I talk about the isovolumetric contraction of the ventricles. Once the signal travels to the ventricles, the ventricles contract. However, the valves remain closed until the pressure builds up high enough to open those valves. That stage of contraction, when the volume of blood in the ventricles stays the same, is called isovolumetric contraction. Watch the video for more details.

➟ Video Chapters

00:00 Intro
00:18 Images of the Heart during Diastolic and Systolic states
00:58 Blood enters heart - atrioventricular valve opens
01:10 What happens during ventricular contraction?
01:40 Graph showing blood volume during heart contraction (diastole and systole)
02:34 Graph showing pressure values during heart contraction (diastole and systole)
04:12 Isovolumetric contraction phase

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