Bronchusmodel, 4-delig

4 stage cross-section of the bronchus demonstrating the tissue changes occurring in asthma and chronic bronchitis. 4-stages: normal bronchus hypersecretion of the mucous gland swelling with lymphoid aggregations smooth-muscle spasm. The model includes: cartilage, mucous glands and plug, spiraling smooth muscles, and the fibroelastic connective tissue and epithelial layers of the bronchus.

All stages rotate on hinge pin. Diameter: 3.8 cm, Size: 10 cm, weight: 0.12 kg