Answer:
hi I hope this helps, I know the answer because I'm in to science / medicine :)
Explanation:
Blood and oxygen are circulated throughout the body by the circulatory and respiratory systems working together.
The trachea, bronchi, and bronchioles transport air into
and out of the lungs.
Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
