Changes

==Key Stage 3=====Meaning===[[File:Trachea.png|right|200px|thumb|A diagram showing the [[trachea]].]]The [[trachea]] is a tube connecting the [[mouth]] to the [[Lung|lungs]]. ===Adaptations of the Trachea===: The [[trachea]] is covered in [[cartilage]] to stop it from closing when the [[lung]]s take in [[Oxygen]].: The [[trachea]] contains [[Specialised Cell|specialsed cell]]s which release [[mucus]] in order to trap [[micro-organism]]s and dust to prevent them entering the [[lung]]s.: The inner lining of the [[trachea]] is covered in [[Ciliated Epithelial Cell|ciliated epithelial cells]] to sweep the [[mucus]] up away from the [[lung]]s. ===About the Trachea===: The [[trachea]] splits into two smaller pipes called [[Bronchus|bronchi]]. ==Key Stage 4=====Meaning===[[File:Trachea.png|right|200px|thumb|A diagram showing the [[trachea]].]]The [[trachea]] is a [[cartilage]] covered tube connecting the [[mouth]] to the [[Lung|lungs]].===Adaptations of the Trachea===: The [[trachea]] is covered in [[cartilage]] to stop it from closing when the lungs take in [[Oxygen]].: The [[trachea]] contains [[Specialised Cell|specialsed cell]]s which release [[mucus]] in order to trap [[micro-organism]]s and dust to prevent them entering the [[lung]]s.: The inner lining of the [[trachea]] is covered in [[Ciliated Epithelial Cell|ciliated epithelial cells]] to sweep the [[mucus]] up away from the [[lung]]s.===About the Trachea===: The [[trachea]] splits into two smaller pipes called [[Bronchus|bronchi]]. ===References=======AQA==== :[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10367 ''Trachea, page 29, GCSE Combined Science; The Revision Guide, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Trachea, page 33, GCSE Biology; The Revision Guide, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946381&linkCode=as2&tag=nrjc-21&linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Trachea, page 70, GCSE Combined Science Trilogy; Biology, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Trachea, page 76, GCSE Biology, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f558 ''Trachea, pages 106-7, 118-9, 148, GCSE Biology; Student Book, Collins, AQA '']