Human Heart Anatomy Diagram - Educational Medical Illustration #3090376 (License: Personal Use)

This black-and-white line illustration depicts the external and internal anatomy of the human heart, clearly outlining the four chambers (left and right atria and ventricles), major blood vessels (aorta, pulmonary artery, vena cavae), and valve positions. The diagram is designed for educational clarity, omitting fine tissue detail to emphasize structural relationships essential for foundational cardiovascular understanding.

Used in medical textbooks, online anatomy courses, health education websites, and classroom presentations to teach cardiac structure and function; matches user intent for visual learning, study aids, or curriculum support.