Conduction System of the Heart
Community Score: 50% | 92.9K views | 7mo
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Join the Amoeba Sisters as they introduce the cardiac conduction system! This video mentions conductive cardiac cells (focusing on pacemaker cells) in the SA and AV nodes and discusses general steps of spontaneous depolarization. It also introduces essential components of the heart's conduction system including the Bundle of His (atrioventricular bundle), right and left bundle branches, and Purkinje fibers. This video assumes students have already seen the Amoeba Sisters Circulatory System video https://youtu.be/_vZ0lefPg_0?si=7fUtCnQxZDIDdFxq TABLE OF CONTENTS: 00:00 Intro 0:56 Pulse 1:14 Reflecting on Heartbeat 1:47 Major Structures and Tissue Review 3:24 Focus on Conductive Cells in Video 3:29 SA Node with Pacemaker Cells 4:05 Membrane Potential 4:41 Funny Current (Pacemaker Current) 5:39 Threshold 5:48 Action Potential in Pacemaker Cells 6:58 AV Node 8:29 Bundle of His and Beyond 8:59 Recap 10:30 ECG (Electrocardiogram) ----------------- Special thanks to Steven Powell, CRNA, for
Tags: cardiac conduction, circulatory system, cardiac system, electrical signal of the heart, action potential in the heart, pacemaker cells, AV node, SA node, how the heart works, pulse, review, summary, science, biology, amoeba sisters, ameba sisters, amoba sisters, ameeba sisters, overview, introduction
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