Human Heart Anatomy Diagram with Pacemaker Placement #81335 (License: Personal Use)

This medical illustration depicts the four chambers of the human heart (right atrium, right ventricle, left atrium, left ventricle), major blood vessels (superior/inferior vena cava, pulmonary arteries/veins, aorta), and a pacemaker implanted in the right atrium. Arrows indicate blood flow direction, and the interventricular septum is clearly marked. The diagram uses distinct colors-blue for deoxygenated pathways, pink for oxygenated-to enhance visual learning.

Used in medical textbooks, cardiology patient education materials, online health portals, and clinical training modules to explain cardiac anatomy and device implantation; matches user intent for understanding heart structure, circulation, or pacemaker function.