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Urothelium (or uroepithelium) is an example of transitional epithelium. It is the type of epithelium that lines much of the urinary tract including the renal pelvis, the ureters, the bladder, and parts of the urethra.
c. Endothelium --ANSWER. The endothelium is the thin layer of cells that line the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall.Endothelial cells line the entire circulatory system, from the heart to the smallest capillary.ndothelium is simple squamous epithelium that lines the vascular system. Transitional epithelium is seen in the urinary tract. Transitional epithelium has dome shaped cells on the apical surface. Pseudostratified epithelium is a type of epithelium that has cells which all touch the basement membrane.