Human Heart Anatomy Diagram - Labeled Structure and Function #1821079 (License: Personal Use)

This medical illustration depicts the human heart with nine key structures labeled, including the superior vena cava (1), right atrium (2), pulmonary artery (3), aorta (4), pulmonary veins (5), left atrium (6), left ventricle (7), right ventricle (8), and inferior vena cava (9). Arrows indicate blood flow direction through the circulatory system, highlighting oxygenated and deoxygenated pathways. The diagram uses distinct colors-blue for deoxygenated blood, red for oxygenated, and pink for heart muscle-to enhance clarity and pedagogical value.

Used in biology, anatomy, and physiology educational resources (e.g., textbooks, online courses, medical training modules) to teach cardiac structure and hemodynamics; matches user intent for visual learning, exam prep, or clinical reference.