Human Heart Anatomy Diagram - Labeled Structure & Circulation Pathways #1767076 (License: Personal Use)

This high-fidelity medical illustration depicts a sagittal section of the human heart with precise color coding: red for oxygenated blood pathways (e.g., aorta, left ventricle), blue for deoxygenated flow (e.g., vena cava, right atrium), purple for pulmonary vessels, and yellow for epicardial fat and coronary vasculature. The pericardial sac is partially retracted to expose the myocardium, valves, and branching coronary arteries supplying the cardiac muscle.

Used in medical textbooks, online anatomy courses, cardiology patient education portals, and healthcare provider training modules; serves users seeking visual clarity on cardiac structure and blood flow for study, diagnosis explanation, or health literacy.