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Accurate analogy of the structure of the lungs

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1. The thoracic cavity is surrounded by a stiff rib cage, while the abdominal cavity has a softer, muscular wall. Explain how such structures are beneficial in each case.

2. The lungs are often thought of as balloons - empty sacs that increase and decrease in volume. Why is this not an accurate analogy of the structure of the lungs?

Reference no: EM132547705

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