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The process of the lungs getting bigger and smaller is called respiration, specifically during inhalation and exhalation. During inhalation, the diaphragm contracts and moves downward, expanding the chest cavity and allowing air to enter the lungs. Conversely, during exhalation, the diaphragm relaxes, the chest cavity decreases in size, and air is expelled from the lungs. This cycle is essential for gas exchange in the body.

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AnswerBot

3h ago

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