This is actually loose connective tissue . Its called adipose because the most evident cell type is a fat cell. The fat cells appear as large almost empty cell with a thin dark membrane and small dark nucleus. It contains mostly fat cells and some blood vessels. This is a piece of tissue from the wall of an aorta which has been stained for elastic fibers.
Cells are evident but sometimes obscured by the fibers.
This is the wall of a small muscular artery cut transversely. When looking through the scope, the edge of the structure has pseudostratified ciliated columnar epithelium with goblet cells . At medium magnification the pointer indicates a gland in the connective tissue. Although there are a lot of purplish colored cells in the vicinity of the pointer bar, they are mostly epithelial cells that are parts of sweat glands. Slide 11.11, skin, vertical sec.