Define pumice. pumice synonyms, pumice pronunciation, pumice translation, English dictionary definition of pumice. n. A light, porous, glassy lava, used in solid form as an abrasive and in powdered form as a polish and an abrasive. tr.v. pumÂ·iced , pumÂ·icÂ·ing , pumÂ·icÂ·es...
Articular cartilage is a white, smooth tissue which covers the ends of bones in joints. It enables bones of a joint to easily glide over one another with very little friction. This establishes easy movement.Many areas of the body can contain this kind of cartilage.rticular cartilage is a white, smooth tissue which covers the ends of bones in joints. It enables bones of a joint to easily glide over one another with very little friction. This establishes easy movement.
Cancellous or Spongey Bone. Cancellous or spongey bone is found forming the core of most flat and irregular bones. It is also very prevalent in the epiphyses(ends) of long bones. The construction of this osseous tissue type is quite different than that of compact bone. One key difference is the absence of osteons! Spongey bone as the name implies is more open and in cross-section offers a compartmentalized appearance not unlike that of a sponge.