| Term 
 
        | Functions of the Skeletal System |  | Definition 
 
        | 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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        | Term 
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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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        | Term 
 
        | Two Layers of the Periosteum |  | 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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        | Term 
 
        | T/F: Is bone always forming and deforming? |  | Definition 
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        | Term 
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        | spongy bone present at the proximal and distal ends of a long bone |  | 
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        | Term 
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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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        | Term 
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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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