Cardiac Cycle || Systole, Diastole, Blood flow in heart, Movement of Valves

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Video Summary:
Starting with the ventricular filling, first, the blood flows from the atria to the ventricles. During this, atrioventricular valves are open and semilunar valves are closed. Then atrioventricular valves close and ventricles contract as close chambers. Rising pressure in the ventricles opens the semilunar valves and blood is ejected from the ventricles into the major arteries. Then semilunar valves close and ventricles relax as close chambers. As pressure falls below that in the atria, the atrioventricular valves open and the next cycle begins with the filling of ventricles. The duration of one cycle is about 0.8 second. In this, 0.5 second is diastole. It includes isovolumetric relaxation and ventricular filling. Ventricular filling is further divided into rapid ventricular filling, diastasis, and atrial systole. Systole occurs for 0.3 second. It includes isovolumetric contraction and ejection phase. Ejection is sometimes divided into rapid ejection and slow ejection phases. Atrial systole coincides occurs during the end of the ventricular diastole. It lasts about 0.1 second. For the rest of the cardiac cycle, the atria are under diastole.
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Chapters
00:00 Relevant Anatomy
01:02 Intro to Cardiac Cycle
03:16 Inflow: Rapid Ventricular FIlling, Diastasis & Atrial Contraction
04:26 Isovolumetric Contraction
05:31 Outflow: Rapid Ejection & Slow Ejection
05:55 Isovolumetric Relaxation
06:58 Duration of Each Phase
08:17 Summary
Dr Vipul Navadiya
DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.

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<a href="#" class="seekto" data-time="197">3:17</a> akkere first e - Isovolumetrically Vent relaxed silo. But, Filling of vent occurs in 3 parts= 1.

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