- Respiratory (2)
4-Part Bronchus Model
This four-stage cross section of the bronchus demonstrates the tissue changes occurring in asthma and chronic bronchitis. The four stages include: normal bronchus, hypersecretion of the mucous gland, swelling with lymphoid aggregations, and smooth..
Product Number: SB42962G
Respiratory System Model Activity Set
Model of upper human torso focuses on study of heart and lungs in the respiratory system. Lungs, trachea, and alveoli are enlarged and shown in cross section. The 18" x 24", three-dimensional model is of lightweight, sturdy construction. Tea..
Product Number: SA02748G
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