Human Lung Anatomy Diagram - Hilum, Pleura, and Diaphragm Labeled #1203212 (License: Personal Use)

This labeled medical illustration depicts a sagittal cross-section of the human thorax, emphasizing the bilateral lungs, their hilum-the central region where bronchi, pulmonary arteries, veins, and nerves enter and exit-and the surrounding visceral and parietal pleura. The diaphragm is shown inferiorly, forming the floor of the thoracic cavity, while rib cage and intercostal muscles frame the lateral boundaries. Small alveolar sacs are visible within lung parenchyma to indicate gas exchange regions.

Used in medical textbooks, online anatomy courses, patient education materials, and healthcare websites to explain respiratory system structure; targets students, clinicians, and patients seeking to understand lung anatomy and pathologies like pneumonia or lung cancer staging.