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.
Pseudostratified columnar epithelium. Pseudostratified columnar epithelium is found lining the trachea, bronchi, male urethra, and a few other places.The slide you will examine is taken from the trachea. Use the low magnification image to identify the epithelial layer, then examine it at higher power.seudostratified columnar epithelium is found lining the trachea, bronchi, male urethra, and a few other places. The slide you will examine is taken from the trachea.