The three classes of connective tissue based on structure and function, are fluid, supporting, and .

form a neat row with nuclei near the center of each cell and appear square in typical sectional views.

tissue covers exposed surfaces and lines internal passageways and body cavities.

The two types of layering recognized in epithelial tissues are simple and .

Connective tissue proper is classified as loose or connective tissue.

line cavities that communicate with the exterior.

From a surface view, cells look like fried eggs laid side by side.