Four stage corss-section of the bronchus demonsrating the tissue changes occuring with asthma and chronic bronchitis. Four stages: normal bronchitis, hypersecretion of the mucous gland, swelling with lymphoid aggregations, and smooth-muscle spasm. The model includes cartlage, mucous glands and plug, spiraling smooth muscles, and the fibroelastic connective tissue and epithelial layers of the bronchus. All stages rotate on a hinge pin.
Lungs With Heart Model
This hand-painted model of the lungs with heart and larynx is about 3-times life-size. The 3-dimensional lungs and heart are shown in cross-section, and the 2-piece larynx divides in half and can be removed for inspection. 33 numbered parts with identifying key. Mounted on a baseboard. Made of fiberglass. Size: 20" x 18"
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