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.
VELCRO Brand Industrial Strength Extreme fasteners feature an VELCRO Brand Industrial Strength Extreme fasteners feature an all-weather UV-resistant adhesive for rough surfaces including concrete and certain types of brick. Theses fasteners have superior holding power.