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  #1  
Old 10-23-2011
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Default Respiratory epithelium

respiratory bronchioles have what type of lining??


UW says...simple cuboidal

FA pg:502 says pseudostatified columnar ciliated??!!

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  #2  
Old 10-24-2011
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uw is right... psudostratified columnar is in trachea
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Old 10-24-2011
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Correct Answer Important note

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Originally Posted by salz View Post
uw is right... psudostratified columnar is in trachea
The epithelium starts as a simple ciliated columnar epithelium and changes to simple ciliated cuboidal epithelium as the primary bronchiole decreases in size.
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Old 10-24-2011
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Originally Posted by Evergreen View Post
The epithelium starts as a simple ciliated columnar epithelium and changes to simple ciliated cuboidal epithelium as the primary bronchiole decreases in size.

yes .i got that already.

but my question at what point the cuboidal epithelium starts?respi bronchiole????
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Old 10-24-2011
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Originally Posted by heman466s View Post
yes .i got that already.

but my question at what point the cuboidal epithelium starts?respi bronchiole????
I couldn't find it. Hopefully, someone can help us
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Old 10-24-2011
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The primary bronchioles are lined by epithelium that varies from ciliated columnar with goblet cells in the larger airways to ciliated cuboidal with Clara cells in the smaller pathways.
Later on, the terminal bronchioles are lined by a simple cuboidal epithelium that contains mostly Clara cells, some ciliated cells and no goblet cells.

SO, the whole conversion thing happens between primary and terminal bronchioles!
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The above post was thanked by:
drortho (11-29-2011), Evergreen (10-24-2011), heman466s (10-25-2011)



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