Human Thoracic Anatomy Diagram - Lungs, Heart, and Bronchial Structures #1820744 (License: Personal Use)

This historical engraving depicts the human thoracic cavity with precise linework, highlighting the bilateral lungs, central heart (with visible right and left ventricles), trachea (labeled 6), and branching bronchi (7). Labels identify the pulmonary artery (1), right atrium (2), left ventricle (3), and pulmonary veins (4), while 5 denotes the aorta. The cross-sectional view emphasizes spatial relationships critical for understanding cardiopulmonary anatomy.

Used in medical textbooks, anatomy courses, and health education websites to teach thoracic organ layout and vascular connections; targets students, educators, and healthcare professionals seeking foundational anatomical knowledge.