Describe the changes that take place (i) around the rib cage (11) alapragm
(iii) chest cavity, during inspiration. State the effect of these changes.
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When we inhale , our rib cage and sternum (bone that join the rib cage) move to the dorsal side and diaphragm moves down or contracted as oxygen is filling in the lungs . volume of thorax or chest cavity (space inside lungs) increases .
Explanation:
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