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.
Most of the cartilage that develops in prenatal life is eventually replaced by bone. However, there are two places where cartilage is found in the adult: Extraskeletal cartilage. For example, the cartilaginous rings in the trachea and the costal cartilage connecting ribs to the sternum. Articular cartilage. This type of cartilage is found in articulating joints, where it provides a smooth, gliding surface at the ends of articulating bones.