When someone exhales, both the rib cage and the diaphragm relax. During exhalation, the diaphragm moves upwards and the rib cage moves downwards and inward, which decreases the volume of the thoracic cavity and increases the pressure in the lungs, allowing air to be expelled.
What occurs when someone exhales?
Both the rib cage and the diaphragm contract
Both the rib cage and the diaphragm relax
1 answer
1 answer