Detailed histology microscope slide of human trachea cross-section, H&E stain, showing pseudostratified ciliated columnar epithelium with goblet cells, basement membrane, lamina propria with seromucous glands, hyaline cartilage C-ring with chondrocytes in lacunae, perichondrium, trachealis smooth muscle, adventitia. High magnification, labeled anatomical structures, realistic light microscopy appearance with pink and purple staining, educational reference quality.

Detailed histology microscope slide of human lung tissue, H&E stain, showing alveoli with type I and type II pneumocytes, alveolar macrophages (dust cells), thin alveolar walls, capillaries within alveolar septa, bronchiole with simple columnar epithelium and Clara cells, smooth muscle layer, respiratory bronchiole transitioning to alveolar ducts and alveolar sacs. Realistic light microscopy appearance, pink and purple H&E staining, high magnification, educational reference quality.