Human Heart Conduction System Anatomy Diagram | Medical Illustration #2367993 (License: Personal Use)

The image displays a sagittal section of the human heart with key components of the cardiac conduction system precisely annotated. Structures include the sinoatrial node (SAN), atrioventricular node (AVN), right and left bundle branches (RBB/LBB), left posterior fascicle (LPS), left anterior fascicle (LAF), and Purkinje fibers (PF), all shown in yellow against red myocardial tissue. Arrows indicate the direction of electrical impulse propagation through these pathways.

Used in medical education, cardiology textbooks, online learning modules, and patient education materials to explain how the heart generates and conducts electrical signals for rhythmic contraction; matches user intent for understanding arrhythmias, ECG interpretation, or cardiac physiology.