4.13 conduction system
Channel: Robin Forbes-Lorman
Date: 2021-02-16

List the parts of the electrical conduction system of the heart in the correct sequence for one contraction (sinoatrial (SA) node, atrioventricular (AV) node, AV bundle, bundle branches, Purkinje fibers), explain how the electrical conduction system produces coordinated heart chamber contractions, and why the SA node normally paces the heart.