<prompt> Microscopic examination of aicular surface of a synol joint demonstrates the following histology representing:Hyaline cailageAdipocytesEndothelial cellsPeriosteum  <response>: The typical diahrodial synol joint has two opposing surfaces composed of hyaline aicular cailage. Microscopically, the cailage is composed of four distinct zones. 1 Superficial tangential zone characterized by chondrocytes, and collagen fibers aligned roughly parallel to the surface 2 Intermediate zone 3 Deep radial zone with chondrocytes and collagen fibers aligned perpendicular to the surface 4 Zone of calcified cailage firmly joined to the underlying subchondral bone 