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  4. The alveolar epithelium in the lungs is

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Q. The alveolar epithelium in the lungs is

NTA AbhyasNTA Abhyas 2022

Solution:

The squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries. They are found in the walls of blood vessels and air sacs of lungs and are involved in functions like forming a diffusion boundary.
The very thin alveolar wall (about 0.0001 mm) is composed of moist, non-ciliated squamous epithelial cells.