Library · Histology
Tracheal histology
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The tracheal wall has four layers. Its inner lining contains an epithelium that appears stratified, although all its cells rest on the same basement membrane.
This apparent layering is an illusion. The nuclei sit at different heights, but the cells share the same base. The cells that reach the surface are ciliated.
In brief
The tracheal wall has four layers.
The epithelium appears stratified, although all its cells rest on the same basement membrane; the cells that reach the surface are ciliated.
It looks multilayered, but all the cells share the same base.
Sources (2)
- NCBI Bookshelf / StatPearlsAnatomy, Thorax, Tracheobronchial Tree
- NCBI Bookshelf / StatPearlsHistology, Respiratory Epithelium
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