Multiple choice

Which tissue forms the “endothelium” in blood vessels?

  1. Cuboidal epithelium

  2. Squamous epithelium

  3. Columnar epithelium

  4. Ciliated epithelium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Endothelium is a type of epithelium that lines the interior surface of blood vessels and lymphatic vessels, forming an interface between circulating blood or lymph in the lumen and the rest of the vessel wall. It is a thin layer of simple squamous cells called endothelial cells.

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