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Epithelial cells in the respiratory tract protect the aveoli from infection by secreting mucus that traps bacteria and other particles. Micro villi push the mucus back up towards the digestive system in something called a "mucus escalator".
In chronic smokers these epithelial cells actually change type, removing the mucus escalator function. This loss of function is the pathophysiology behind smokers cough, as they must cough up the mucus they produce.
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∙ 12y ago
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You find pseudostratified columnar epithelium lining?
trachea
What forms the lining of trachea and bronchi?
pseudostratified columnar epithelium
Where is ciliated columnar epithelium found?
Ciliated epithelium is located in the lining of most body cavities. Some of the cavities that have ciliated epithelium are the lungs, trachea, and nose. Ciliated epithelium serves to keep dust and debris out of the lungs and control the flow of mucus.
Where is psuedostratified epithelium located?
Psuedostratified epithelial tissue is epithelial tissue that looks as though it is multiple layers, i.e. stratified, but actually each cell is anchored to the basement membrane. It can be found chiefly lining the respiratory tract.
What are the hair like structures that line the trachea?
Trachea's inner lining(lining that faces the hollow side) is comprised of ciliated epithelium which rests on a basement membrane made of protein fibers. In between the ciliates cells the goblet cells are situated. Beneath the epithelium is an area of loos tissue and tracheal glands that secrets mucus (both tracheal glands and goblet cells secrets mucus so don't get confused which one produces mucus). There is a C-Shaped cartilage in outer lining that supports the trachea.
What is the difference between covering and lining epithelium from glandular epithelium?
glandular epithelium are specialized for secretion. lining epithelium simply line organs like the stomach.
The inner lining of the trachea is composed of?
Pseudostratified columnar epithelium (ciliated form)
What type of epithelium is found lining internal body compartments and blood vessels?
These are usually simple squamous epithelial cells. The epithelium lining the body cavities is called the mesothelium and is where the cancer mesothelioma arises from. The epithelium lining arteries and veins is called endothelium.
True or false The epithelium at the trachea level is simple squamous?
no
What is epithelium?
Epithelium is a layer of animal tissue. It can be found in the lining of certain organs and glands in the body.
What is an fact about the trachea?
It is the sirght of the only spuedostriated epithelium. The full name for the epithelium here is psuedostriated cilliated non-keratinising collumnar epithelium with goblet cells.
The lining of the coelom is called?
The coelom is lined with epithelium.
