The diaphragm is a group of muscles found in the bottom of the chest cavity. The diaphragm’s job is to help pump carbon dioxide out of the lungs and pull the oxygen into the lungs. Your diaphragm contracts to pull oxygen into the lungs and relaxes to pump carbon dioxide out of the lungs.
All of these body parts work together in the respiratory system. This system works very hard to bring oxygen to our blood and remove carbon dioxide from the body.