Скачать с ютуб Action Potential In Cardiac Muscle || Heart || Cardiovascular Physiology в хорошем качестве

Action Potential In Cardiac Muscle || Heart || Cardiovascular Physiology

📝 Find notes here: https://www.nonstopneuron.com/post/ac... 🌐 Explore our entire animation video library at: https://www.nonstopneuron.com/ Video Summary: The action potential in cardiac muscle has 5 phases. Phase 0 or initial depolarization is due to the opening of fast sodium channels and rapid Na influx. Phase1 or initial depolarization is due to the closure of fast sodium channels and efflux of a small quantity of potassium through open potassium channels. Phase 2 or plateau is due to the opening of slow or L type of calcium channels leading to Ca influx and closure of potassium channels which prevents the K efflux. Calcium channels stay open for quite some time so we get a long plateau. Then Phase 3 or final repolarization is due to the closure of L-type calcium channels that prevent further Ca entry and opening of slow K channels leading to K efflux. Phase 4 is resting membrane potential till the next action potential. To restore the ionic balance, Na-K ATPase pump moves Na out and K in, and Na-Ca exchanger and Ca pump moves the Ca out. 🎞 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:https:    • 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...   • Introduction To Cardiovascular System:    • Introduction To Cardiovascular System...   ● Follow me at: • Instagram:   / nonstopneuron   • Facebook:   / nonstopneuron   Chapters 00:00 Intro 00:35 Ions Involved in Action Potential 01:01 Phase 0: Upstroke 01:49 Phase 1: Initial Repolarization 02:09 Phase 2: Planeau 03:21 Phase 3: Final Repolarization 03:44 Phase 4: Resting Membrane Potential 03:56 Restoration of Ionic Balance 04:51 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.