Original PromptThe Conduction System
SA node (Pacemaker of heart) upper/anterior wall of Rt atrium and opening of SVC: Sends electrical signals to
Bachmann’s Bundle (causes atria to contract)
Wenckebach’s Bundle (middle)
Thorel Bundle
Atrioventricular (AV) node(lower posterior portion of Rt atrium)
Bundle of HIS
Right & Left Bundle Branches
Purkinje Fibers (cause ventricles to contract)
This learning resource focuses on the cardiac conduction system, detailing its anatomical components and the electrical pathways through which impulses travel in the heart. It outlines the intrinsic electrical system responsible for generating and coordinating heartbeats, ensuring synchronized contractions. Key components such as the SA node, AV node, and Purkinje fibers are highlighted, along with their specific roles in the conduction sequence. The resource includes a word bank for terminology, matching exercises for anatomical descriptions, and thought-provoking questions that encourage deeper understanding of the physiological mechanics and significance of the conduction system. Additionally, it challenges students to explain the role of the pacemaker and assess their confidence in mapping conduction sequences.