Question

multiple choice question
the endothelium of capillaries is composed of ______ epithelium surrounded by loose connective tissue.
simple squamous
simple columnar
pseudostratified
transitional

Explanation:

Capillaries have a thin - walled structure for efficient gas and nutrient exchange. Simple squamous epithelium is thin and flat, which is ideal for this function. Other types of epithelium like simple columnar, pseudostratified, and transitional are not suitable for the thin - walled structure of capillaries.

Answer:

simple squamous