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

📝 Find notes here: https://www.nonstopneuron.com/post/ca...
🌐 Explore our entire animation video library at: https://www.nonstopneuron.com/

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.

🎞 More videos on the Physiology of CVS
• Renin Angiotensin Aldosterone System (RAAS):    • You Will Be Able To ANSWER ALL QUESTI...  
• Vasopressin: Synthesis, Release and Effects:    • Vasopressin: Release and Mechanism of...  
• Baroreceptor Reflex:    • Baroreceptor reflex for Short term re...  
Simplest Way to Show Circulation of Blood:    • The Simplest way to show the blood ci...  
• Fluid Filtration Across
Capillary wall:    • Fluid Filtration Across Capillaries |...  
• Blood Flow:    • Blood Flow: Laminar vs Turbulent || R...  
• Origins of Pressure in the Circulation:    • ONLY 2% of Medical Students Know All ...  
• Physical Properties of Blood Vessels:    • You Know Eerything Said in this Video...  
• Blood Pressure Along The Vascular Circuit:    • DON'T TAKE THIS FOR GRANTED: Blood Pr...  
• Pacemaker:    • Pacemaker Tissues of the Heart: SA No...  
• Action Potential In SA Node:    • Action Potential In SA Node || Primar...  
• Conductive System of The Heart:    • Conductive System of The Heart || AV ...  
• Action Potential In Cardiac Muscle:    • Action Potential In Cardiac Muscle ||...  
• Effect of Parasympathetic and Sympathetic Activation on SA Node (Heart Rate):    • Effect of Parasympathetic and Sympath...  
• Effect of Parasympathetic and Sympathetic Activation on Impulse Conduction in AV Node:    • MIND BLOWING Effects of Parasympathet...  
• Introduction To Cardiovascular System:    • Introduction To Cardiovascular System...  

● Follow me at:
• Instagram:   / nonstopneuron  
• Facebook:   / nonstopneuron  

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.