What is the role of the diaphragm in my body?

When the diaphragm contracts, it flattens out, lowering the pressure in the lungs and allowing air in. When the diaphragm relaxes, it makes a dome shape, increasing the pressure in the lungs and pushing air out. (This answer provided for NATA by the University of Montana Athletic Training Education Program.)

Continue Learning about Parts of the Respiratory System

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.