Written Respiratory Protection Program Template

The respiratory system and circulatory system work together to bring O 2 to cells all over the body and get rid of CO 2.When a person inhales, air with O 2 is brought into the lungs. O 2 diffuses from the air in the tiny air sacs of the lungs into the blood. The O 2-carrying blood is pumped by the heart to blood vessels near all the cells in the body.O 2 diffuses from the blood into the cells ... ................
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