The act of breathing in (inhalation) involves expanding the thoracic cage. What does this cause the lung volume to do?

waelhammad

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2022-10-19

increase, the pressure of the air in the lungs to decrease and atmospheric air to move into the lungs.
decrease, the pressure of the air in the lungs to decrease and atmospheric air to move into the lungs
increase, the pressure of the air in the lungs to increase and atmospheric air to move into the lungs.
decrease, the pressure of the air in the lungs to decrease and atmospheric air to move out of the lungs.

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waelhammad

2022-10-19

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A: Expanding the thoracic cage increases lung volume which (by Boyle’s law) decreases the air pressure in the lungs.

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