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Functions of the Skeletal System |
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1. Support the body's soft tissues and internal organs 2. Stores materials like calcium 3. Blood cells are produced in bone marrow |
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1. Compact (or dense) - hard, outer layer 2. Spongy (or cancellous tissue) - inner layer |
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1. Organic Material - 30% (cells and collagenous fibers, bone flexibility) 2. Inorganic Material - 70% (hydroxyapatite, bone support/strength) |
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glossy, smooth, tough, fibrous membrane containing 2 layers |
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Two Layers of the Periosteum |
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Definition
1. Outer fibrous layer - where tendons and ligaments lie 2. Inner cellular layer - produce osteoblasts |
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former osteoblasts that have become trapped in the matrix |
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T/F: Is bone always forming and deforming? |
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spongy bone present at the proximal and distal ends of a long bone |
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compact one present at the shaft of a long bone |
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certain anatomical features on a bone |
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rounded articular projection, supported on the neck of the bone |
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a constriction below the head, connects it to the body of the bone |
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a relatively small bump on a bone |
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relatively large bump on a bone |
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shallow depression in a bone |
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an irregular, smooth surface that helps articulate with another bone, cone-shaped |
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a projection above a condyle, used for muscle attachment |
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