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==Key Stage 3==
===Meaning===
The [[diaphragm]] is a wall of [[muscle]] separating the [[organ]]s in the [[thorax]] from the [[organ]]s in the [[Abdomen (human)|abdomen]].
===About the Diaphragm===
==Key Stage 4==
===Meaning===
The [[diaphragm]] is a wall of [[muscle]] separating the [[organ]]s in the [[thorax]] from the [[organ]]s in the [[Abdomen (human)|abdomen]].