Bone marrow: The soft blood-forming tissue that fills the cavities of bones and contains fat and immature and mature blood cells, including white blood cells, red blood cells, and platelets. Diseases or drugs that affect the bone marrow can affect the total counts of these cells.one marrow: The soft blood-forming tissue that fills the cavities of bones and contains fat and immature and mature blood cells, including white blood cells, red blood cells, and platelets. Diseases or drugs that affect the bone marrow can affect the total counts of these cells.
hooks (left) and loops (right). Velcro is a brandname and trademark owned by the Velcro Companies for hook-and-loop fasteners. Hook-and-loop fasteners have a hook side, which is a piece of fabric covered with tiny hooks, and a loop side, which is covered with even smaller and hairier loops.
Answer Wiki. In the news a few years ago was quiet Velcro, an invention by Leonard Duffy that he calls a Slidingly engaging fastener. The product is self-mating, as the two halves are the same. Arrays of 'mushrooms' fit into place, and lock by sliding into position. It looks like the product has some play when shear is applied (it has to 'slide' into an engaged position), but once in that position it resists tension as well.