1. a light glass formed on the surface of some lavas; used as an abrasive. Familiarity information: PUMICE used as a noun is very rare. â¢ PUMICE (verb) The verb PUMICE has 1 sense: 1. rub with pumice, in order to clean or to smoothen. Familiarity information: PUMICE used as a verb is very rare.
ECM of articular cartilage. -collagen (Type II) that is dispersed throughout ground substance and produces strong tensile resistance to stress-Proteoglycans (aggrecans) that form strong, permeable fiber and attracts lots of water-water and dissolved electrolytes.one 1-superficial zone where fibers are parallel to surface Zone 2-middle zone where fibers are randomly oriented Zone 3-Deep zone of cartilage where fibers are vertically oriented.
There are three varieties of cartilage, hyaline, elastic, and fibrocartilage. The most abundant type is hyaline, found as supportive tissues in the nose, ears, trachea, larynx, and smaller respiratory tubes. As articular cartilage, hyaline is found covering the articular surfaces of bones in synovial joints.Here, hyaline cartilage reduces friction and acts as shock-absorbing tissue. to the left of the stacks of chondrocytes, the extracellular matrix of hyaline cartilage is very uniform in appearance in contrast to that of bone. 2  cartilage typically appears blue or light purple because extracellular components of the matrix attract basic stains.