Human Heart Anatomy Diagram - Educational Medical Illustration #81325 (License: Personal Use)

This medical illustration depicts the human heart with major structures including the aorta, pulmonary artery, superior and inferior vena cava, and coronary vessels. Red vessels represent oxygen-rich arterial blood flow, while blue vessels indicate oxygen-poor venous return. The image emphasizes anatomical relationships critical for understanding circulation and cardiac physiology.

Used in educational websites, medical textbooks, e-learning modules, and health infographics to teach cardiovascular anatomy; targets students, teachers, and clinicians seeking visual reinforcement of heart structure and blood flow.