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==Key Stage 3==
[[File:Trachea.png|right|200px|thumb|A diagram showing the [[bronchiole]]s.]]
===Meaning===
The [[bronchiole]]s are small branches of the [[bronchi]] which link the [[alveolus|alveoli]] in the [[lung]]s to the [[trachea]].
==Key Stage 4==
[[File:Trachea.png|right|200px|thumb|A diagram showing the [[bronchiole]]s.]]
===Meaning===
The [[bronchiole]]s are small branches of the [[bronchi]] which link the [[alveolus|alveoli]] in the [[lung]]s to the [[trachea]].
: There many [[bronchiole]]s in the [[lung]]s.
: The [[bronchiole]]s connect to air sacs which contain several [[alveolus|alveoli]].
===References===
====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=27ad53b0283feeff7fc5ae04a9e205f95 ''Bronchiole, pages 107, 118-9, GCSE Biology; Student Book, Collins, 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=ad276ad49df77ab4b40ab4fd0fe09730 ''Bronchioles, 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 ''Bronchioles, page 33, GCSE Biology; The Revision Guide, CGP, AQA '']