A damaged lung may not be able to move fresh air into the body; this would cause a decrease in the amount of nutrientsoxygencarbon dioxideforeign particles in the body.

Fresh air entering the lungs supplies oxygen, which passes into the blood and is carried throughout the body. If damaged lungs cannot move enough fresh air in, the amount of oxygen available to the body decreases. Carbon dioxide is a waste gas that the lungs help remove, rather than a nutrient supplied by fresh air.

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