Human Thoracic Anatomy Diagram - Lungs, Heart, and Trachea Labeled #167339 (License: Personal Use)

This high-detail engraved illustration depicts the anterior view of the human thoracic cavity, highlighting bilateral lungs with bronchial trees, the central heart with chambers and great vessels (e.g., aorta, pulmonary arteries), and the trachea bifurcating into main bronchi. Labels A through S identify specific structures such as the pulmonary veins (R, S), left atrium (M), right ventricle (E), and pericardial sac (C). The stippled shading enhances depth and tissue differentiation, typical of 19th- to early-20th-century medical atlases.

Used in medical textbooks, anatomy courses, health education websites, and clinical training materials to teach thoracic organ relationships; matches user intent for visual learning, exam prep, or professional reference.