Lungs

Description

Centered in the superior mediastinum, the trachea descends from the laryngeal inlet with its C-shaped tracheal cartilages clearly delineated, then bifurcates at the carina into the right and left main bronchi. Each lung occupies its hemithorax lateral to the airway, with the right lung broader and typically shorter than the left, and the left lung molded around the cardiac impression. Branching bronchi and bronchioles radiate from the hila toward the peripheral parenchyma, implying the distal acinar units and alveoli without isolating them individually. Inferiorly, the diaphragmatic surfaces of both lungs rest on the respiratory diaphragm, with the costal surfaces curving anteriorly and laterally beneath the thoracic wall. Clear landmarks. That tracheobronchial branching pattern is the map clinicians use when they talk about aspiration and lobar collapse. Aspirated material more often tracks into the right main bronchus because it is wider and more vertical, and an x-ray style rendering like this helps correlate airway anatomy with dependent opacities and air bronchograms seen in pneumonia. The carina also matters in practice, because endotracheal tubes advanced too far commonly enter the right main bronchus, producing unilateral (left) atelectasis. Use this artwork in gross anatomy and cardiopulmonary blocks to teach lobes, bronchi, and diaphragmatic relationships, or in radiology and respiratory therapy materials that pair airway anatomy with chest radiograph interpretation and bronchoscopy orientation. It also fits patient-facing education for COPD, asthma, and post-obstructive atelectasis when you want a scan-like look without the noise of actual imaging. Anatomical accuracy verified by SciePro's Medical Advisory Board.