Long bones

Long bones
Definition:
Long bones are hard, dense bones that provide strength, structure, and mobility (such as the femur or thigh bone). A long bone has a shaft and two ends.
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- Long Bones
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Review Date : 5/2/2003
Reviewed By : Todd Severson, M.D., Department of Emergency Medicine, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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Arthritis -- Long bones in the leg may bow, distorting alignment and increasing pressure on nearby joints. In addition, Pagetic bone may enlarge, causing joint surfaces to undergo excessive wear and tear.
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There are three long bones in the arm: the humerus, or upper arm, and the ulna and radius, the two bones of the lower arm. The bone on the little finger side of the forearm is the ulna, and the bone on the thumb side of the forearm is the radius.
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Your doctor may order X-rays of the long bones in your body, your skull and chest to help confirm the diagnosis and to check for bone weakness. A bone marrow biopsy also will be done to confirm an abnormally high level of plasma cells.
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Long-term corticosteroid use, however, is inappropriate and may cause substantial morbidity, including immunosuppression, proximal muscle weakness (especially involving the thighs and upper arms), aseptic necrosis of the long bones, ...
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Chondrosarcoma A malignant tumor of cartilage that usually occurs near the ends of the long bones. Ewing's sarcoma A malignant tumor starting in bone, affecting the bones of extremities. It often appears before the age of 20.
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The bone marrow is the soft, spongy center of the long bones that produces the three major blood cells: white blood cells to fight infection; red blood cells that carry oxygen; and platelets that help with blood clotting and stop bleeding.
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The forefoot is composed of the five toes (called phalanges) and their connecting long bones (metatarsals). Each toe (phalanx) is made up of several small bones.
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OP-1 (osteogenic protein-1) implant/bone graft Bone graft (a combination of recombinant human protein and collagen carrier) for repair of bone fractures and nonunion of the long bones; ...
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All blood cells originate in the bone marrow, the soft substance in the interior channel that runs through the long bones.
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The excessive height of the pituitary giant, which is defined at various levels above 7 ft (213 cm), is caused by excessive growth of the long bones.
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Calcitonin slows thinning of bone in the spine, hip (pelvis), and ends of the long bones (trabecular bone), although it does not appear to be as effective as other medicines, such as raloxifene or alendronate, ...
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Platelets are formed in the bone marrow--a spongy tissue located inside the long bones of the body--as fragments of a large precursor cell (a megakaryocyte).
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A substance found in the cavities of bones, especially the long bones and the sternum (breast bone). The bone marrow contains those cells which are responsible for the production of the blood cells (red blood cells, white blood cells, and platelets).
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Osteomyelitis is an infection of the bone, particularly the long bones in children. It most commonly affects the bones either side of the knee (the lower end of the femur or the top end of the tibia) but any bone in the body may be affected.
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Osteoarthritis: Cartilage is a smooth, soft, pearly tissue. Among other places, it is found on the ends of the long bones, and provides a smooth surface for the bones in the joints to slide against.
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Pain is the most common symptom of bone cancer. Although bone cancer can arise in any of your body's 206 bones, it most frequently occurs in the long bones of your arms and legs.
Other possible signs and symptoms of bone cancer include: ...
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Acromegaly can occur in children. When it does, it is called gigantism (from the word for giant), because abnormal growth of the long bones of the arms and legs makes the child unusually tall.
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Hormone studies
Stool studies (to check for malabsorption)
X-rays to determine bone age (x-rays of the hands and wrists as a measure of growth)
X-rays of the long bones to look for new or old fractures ...
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