Human Heart Anatomy Diagram - Educational Medical Illustration #3654017 (License: Personal Use)

This educational illustration depicts the human heart with red representing oxygenated blood-filled chambers (left atrium and ventricle), blue indicating deoxygenated blood pathways (superior/inferior vena cava and pulmonary artery), and brown coronary arteries supplying myocardial tissue. The image emphasizes structural relationships without complex labeling, making it accessible for introductory anatomy learning.

Used in biology textbooks, medical e-learning modules, health awareness campaigns, and patient education materials to explain cardiac anatomy; matches user intent for visual learning or quick reference.