Breathe new life into your teaching of lung structure and function. This low-cost model articulates all the major internal structures of the lung with its open, cutaway view of the inside of the lung. Trachea, bronchus, lymph nodes, pulmonary artery and veins are some of the structures identified. A durable full-color teaching guide identifying the major anatomical structures is included and makes an excellent teaching aid. Model size is 11.5 cm x 16 cm x 19 cm.