Glossary of Wednesday the 15th Word of the Day
Created by ap.jewell
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- The shaft of a long bone
- A mature bone cell that maintains the daily activity of bone tissue.
- Bone tissue that contains few spaces between osteons (haversian systems); forms the exernal portion of all bones and the bulk of the diaphysis (shaft) of long bones; is found immediately deep to te periosteum and external to spongy bone.
- Compact Bone Tissue
- The basic unit of structure in adult compact bone, consists of a central (haversian) canal with its concentrically arranged lamellae, lucunae, osteocytes and canaliculi.
- Osteon (haversian system)
- Bone tissue that consists of an irregular latticework of think plates of a bone called trabeculae; spaces between trabeculae of some bones are filled with red bone marrow; found inside short, flat and irregular bones and in the epiphysis of long bone.
- Spongy Bone Tissue
- Irregular latticework of thin plates of spongy bone tissue. Fibrous chord of connective tissue serving as supporting fiber by forming a septum extending into an organ from its wall or capsule.
- The breakdown of bone extracellular matrix. Part of the normal development, maintenance and repair of bone.
- The broken ends of the bone protrude through skin.
- Open (compoun) Fracture
- The bone does not break the skin when fractured.
- Closed (simple) Fracture
- greenstick fracture
- an incomplete fracture of a long bone, in which one side is broken and the other side is still intact.
- a disorder in which the bones become increasingly porous, brittle, and subject to fracture, owing to loss of calcium and other mineral components, sometimes resulting in pain, decreased height, and skeletal deformities
- a disease of childhood, characterized by softening of the bones as a result of inadequate intake of vitamin d and insufficient exposure to sunlight, also associated with impaired calcium and phosphorus metabolism.
- a condition characterized by softening of the bones with resultant pain, weakness, and bone fragility, caused by inadequate deposition of calcium or vitamin d.
- End of a long bone, usually larger diameter than the shaft of the bone
- Region of a long bone between the diaphysis and epiphysis that contains the epiphyseal plate in a growing bone.
- The covering of a bone that consists of connective tissue, osteogenic cells, and osteoblasts; is essential for bone growth, repair, and nutrition
- Medullary (Marrow) Cavity
- The space within the diaphysis of a bone that contains yellow bone marrow.
- Osteogenic Cells
- Stem cells derived from mesenchyme that has mitotic potential and the ability to differentiate into an osteoblast
- Cell formed from a osteogenic cell that participates in bone formation by secreting organic components and some inorganic salts
- A large multi-nuclear molecule that resorbs (destroys) bone matrix
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