Question

What are epithelial cells ?
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Answer 1

Answer:

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What are epithelial cells ?

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Epithelial cells are a type of cell that lines the surfaces of your body. They are found on your skin, blood vessels, urinary tract, and organs. ... It's normal to have a small amount of epithelial cells in your urine.

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Answer 2

Explanation:

Epithelial cells are the cellular components of the epithelium (pleural: epithelia). Epithelia are layers of contiguous cells that line the surfaces of organs and tissues.

• Epithelial cells are localised to three distinct areas of the body. They can be found:

1. Covering the whole external surface of the body, as part of the skin.
2. Lining interior tracts which open to the exterior, such as the respiratory, gastrointestinal and genitourinary tracts.
3. Lining interior enclosed spaces, such as blood vessels, the peritoneum, the pleura and the pericardial sac.

Epithelial cells are classified in two ways. Firstly they can be classified depending on how many layers of cells are present, and secondly, by shape.