What take place when you inhale and exhale?

Sagot :

The process of breathing performs a number of important gas exchanges through inhalation and exhalation. When someone inhales, they contract and move their diaphragm, which allows the lungs to expand. This is a part of the process needed to psychically suck in the air. When a person exhales, the diaphragm relaxes and the movement is undone. This allows air to be gradually pushed out of the lungs. 
when we inhale oxygen takes place and when we exhale carbon dioxide is getting out from our body..i think so...