Term
-structure framework of the body
-provides points of attachment for muscles for movement
-supports and protects body's soft tissues and internal organs
-regulates ions like calcium and phosphates used in other processes
-produces blood cells in it's bone marrow |
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Definition
| functions of the skeletal system? (5) |
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| compact bone/dense bone and spongy bone/cancellous tissue |
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| two types of bone tissue? |
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| 30% organic material, 70% inorganic material |
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| contains cells and collagenous fibers which give the bone a degree of flexibility |
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| inorganic material of bone |
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| hydroxyapatite which enables the bone to support the weight of the body without sagging |
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tough, fibrous membrane containing 2 layers:
the outer fibrous layer and the inner cellular layer that produces osteoblasts |
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| former osteoblasts that have become trapped in the matrix they deposited |
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| spaces where mature bone cells reside |
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| round passageway for blood vessels |
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| passageway through substance of bone |
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| spongy bone present at the proximal and distal ends of a long bone; enlarged to provide added surface area for the attachment of tendons and covered with a layer of hyaline cartilage that helps reduce friction at the joint. |
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| shaft (middle) of the long bone, made up of compact bone with marrow cavity or space inside |
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| proximal and distal epiphyses |
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| in epiphysis, makes red blood cells which mature here and the white blood cells made here go elsewhere to mature |
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| in diaphysis, fat, primary function=energy storage |
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| layer of cells, mostly cartilage, that is very metabolically active; found in long bones, eventually calcify and go away when we stop growing. |
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| growth ring of bone cells |
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