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Trachea
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The trachea contains 16 to 20 C-shaped cartilage rings. These rings act as supports and help prevent the airway from collapsing during exhalation.
Its inner lining also helps clean the airway. Mucus traps dust and other debris, while cilia move that material away from the lungs.
In brief
The trachea contains 16 to 20 C-shaped cartilage rings that help prevent it from collapsing during exhalation.
The C-shaped rings act as supports that help keep the airway from collapsing.
Its inner lining produces mucus that traps particles, and cilia move that material away from the lungs.
Sources (1)
- NCBI Bookshelf / StatPearlsAnatomy, Thorax, Tracheobronchial Tree
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