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 Fasteners â What You Need to Know. Among the fastening systems we offer for our removable insulation blankets is. Velcro. An excellent and easy to use. fastener, Velcro is often used in. applications which require a simple. and quick fastening method. Velcro. fastening does, however, come with. some limitations, which users need. to be aware of in order for it to function as intended.