Multiple choice

The cavities of body organs such as the mouth, blood vessels, heart and lungs are lined by

  1. squamous epithelium

  2. simple cuboidal epithelium

  3. simple columnar epithelium

  4. ciliated columnar epithelium

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A Correct answer
Explanation

Squamous cells have the appearance of thin, flat plates. The shape of the nucleus usually corresponds to the cell form and helps to identify the type of epithelium. They form the lining of cavities such as the mouth, blood vessels, heart and lungs, and make up the outer layers of the skin.

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