What happens to the oxygen you breathe in? Answer this in 4 sentences
Answer (1)
Answer:When you breathe in, oxygen-rich air travels down your windpipe and into your lungs, eventually reaching tiny air sacs called alveoli. Here, oxygen quickly diffuses across the thin walls of the alveoli into surrounding capillaries. Once in the bloodstream, red blood cells pick up the oxygen, transporting it throughout your body. Every cell then uses this oxygen to produce energy, a vital process for all bodily functions.
