The circulatory system consists of the heart and many blood vessels. Which identifies an example of a tissue that is part of the circulatory system?

Epithelial tissue found inside the body is called endothelium. Epithelial tissueusually sits on top of a thin layer of connective tissue, called the "basement membrane." In the circulatory system, epithelial tissue can be found in the structure of the arteries, veins, and capillaries, and it also covers the heart.