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17 Cards in this Set
- Front
- Back
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Osteology
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The study of bone structure and treatment of bone disorders.
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6 bone functions
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support, protection, assists in movement, mineral homeostasis, site of blood cell production, storage of energy
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The main parts of a long bone
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diaphysis, epiphyses, metaphysis, articular cartilage, periosteum, medullary or marrow cavity, endosteum
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Four types of cells in bone tissue
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osteoprogenitor, osteoblasts, osteocytes, and osteoclasts
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osteoprogenitor
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Stem cells derived from mesenchyme that has mitotic potential and the ability to differentiate into an osteoblast.
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osteoblasts
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Cell formed from an osteoprogenitor cell that participates in bone formation by secreting some organic components and inorganic salts.
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Osteocytes
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A mature bone cell that maintains the daily activities of bone tissue.
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Osteoclasts
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A large multinuclear cell that destroys or resorbs bone tissue.
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compact (dense) bone tissue
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contains few spaces, it forms the external layer of all bones of the body and the bulk of the diaphyses of long bones
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ossification
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the process by which bone forms
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partial fracture
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the break across the bone is incomplete
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complete fracture
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the break across the bone is complete, so that the bone is broken into two or more pieces.
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closed (simple) fracture
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the bone does not break through the skin
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open (compound) fracture
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the broken ends of the bone protrude through the skin.
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comminuted fracture
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the bone has splintered at the site of impact, and smaller fragments of bone lie between the two main fragments.
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greenstick fracture
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a partial fracture in which one side of the bone is broken and the other side bends; occur only in children.
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spiral fracture
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the bone usually is twisted apart.
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