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Created page with "==Key Stage 3== ===Meaning=== The '''rib cage''' is the bones in our thorax which serve to protect the lungs and heart. ===About the Rib Cage=== : As air..."
==Key Stage 3==
===Meaning===
The '''rib cage''' is the [[bone]]s in our [[thorax]] which serve to protect the [[lungs]] and [[heart]].
===About the Rib Cage===
: As [[air]] is [[inhale]]d the '''rib cage''' expands due to [[Intercostal Muscle|intercostal muscles]] relaxing.
: As [[air]] is [[exhale]]d the '''rib cage''' pulls inward due to [[Intercostal Muscle|intercostal muscles]] contracting.
===Meaning===
The '''rib cage''' is the [[bone]]s in our [[thorax]] which serve to protect the [[lungs]] and [[heart]].
===About the Rib Cage===
: As [[air]] is [[inhale]]d the '''rib cage''' expands due to [[Intercostal Muscle|intercostal muscles]] relaxing.
: As [[air]] is [[exhale]]d the '''rib cage''' pulls inward due to [[Intercostal Muscle|intercostal muscles]] contracting.