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How does the respiratory system work?
How does the diaphragm play a role in breathing?
The diaphragm is a muscle located at the bottom of the chest cavity. When we inhale, the diaphragm contracts and flattens, creating more space in the chest cavity and allowing the lungs to expand and fill with air. When we exhale, the diaphragm relaxes and moves upward, pushing air out of the lungs.