bench definition, bench meaning | English dictionary. bench. n an apparatus for experimentation in optics, typically consisting of an adjustable arrangement of light source, lenses, prisms, etc. bench.
3 Principal characteristics of cells that make up epithelium. -Cells are closely apposed-they adhere to one another via specialized cell junctions-Exhibit both structural and functional polarity-Epithelium creates a selective barrier between the external environment and the underlying connective tissue.î î î.Cells are closely apposed-they adhere to one another via specialized cell junctions-Exhibit both structural and functional polarity-Epithelium creates a selective barrier between the external environment and the underlying connective tissue. î î î.
Epithelia are a sheet of cells that line almost all body surfaces (skin, intestine, lung, body cavities), form the functional units of secretory glands, and line the inner surface of blood and lymphatic vessels. List the junctional complexes that hold epithelial cells together and their primary functions. 2  List the functions of the basement membrane and how epithelial cells attach to the basement membrane.