Lung and Oxygen: -moves air into the lungs. The ribs move out and the diaphragm contracts.
-Thorax volume increases.
-lungs expand and the pressure drops inside
-pressure in atmosphere pressure in lungs so air comes rushing in.

Question

-moves air into the lungs. The ribs move out and the diaphragm contracts. 
-Thorax volume increases.
-lungs expand and the pressure drops inside
-pressure in atmosphere > pressure in lungs so air comes rushing in.

C.A McElhatton · Accepted Answer

Inspiration (4 points)

Lung and Oxygen

-moves air into the lungs. The ribs move out and the diaphragm contracts. -Thorax volume increases. -lungs expand and the pressure drops inside -pressure in atmosphere > pressure in lungs so air comes rushing in.

Inspiration (4 points)

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