What will happen when diaphragm relaxes and curves upwards? * Air is forced out of the lungs. The rib cage goes up and outward. The volume of the thoracic cavity increases Air pressure inside the thoracic cavity decreases.
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What will happen when diaphragm relaxes and curves upwards? * Air is forced out of the lungs. The rib cage goes up and outward. The volume of the thoracic cavity increases Air pressure inside the thoracic cavity decreases.
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