https://stream.echo6.co/videos/watch/b36054f0-328a-4689-a41b-d981a161ac4d Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! In this cardiovascular physiology lecture, Professor Zach Murphy presents a detailed overview of the heart’s intrinsic conduction system. This specialized network initiates and propagates electrical impulses responsible for synchronized cardiac contraction. This session explores the electrophysiological properties of key nodal and conducting cells that maintain the heart’s rhythmic activity. We begin by walking through the pathway of electrical flow, starting at the sinoatrial (SA) node, the heart’s natural pacemaker, followed by conduction through the atrioventricular (AV) node, bundle of His, right and left bundle branches, and finally the Purkinje fibers. The lecture emphasizes the importance of automaticity, conduction velocity, and pacemaker hierarchy while tying in the differences in action potential phases between nodal and non-nodal tissue. You’ll also gain insight into how the autonomic nervous system modulates heart rate through sympathetic and parasympathetic input, and how conduction delays at the AV node ensure proper timing between atrial and ventricular contractions. Enjoy the lecture and support us below! 🌐 Official Links Website: https://www.ninjanerd.org Podcast: https://podcast.ninjanerd.org Store: https://merch.ninjanerd.org 📱 Social Media https://www.tiktok.com/@ninjanerdlectures https://www.instagram.com/ninjanerdlectures https://www.facebook.com/ninjanerdlectures https://x.com/ninjanerdsci/ https://www.linkedin.com/company/ninja-nerd/ 💬 Join Our Community Discord: https://discord.gg/3srTG4dngW #ninjanerd #heart #intrinsiccardiacconductionsystem Wed, 15 Apr 2026 09:51:37 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/b36054f0-328a-4689-a41b-d981a161ac4d All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.