Chapter 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| diaphysis | shaft part of the long bone
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| medullary cavity | hollow tube running down the middle of the diaphysis, filled with yellow marrow and is used for shock absorption
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| periosteum | thin membrane covering the diaphysis where the tendons and ligaments attach
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| epiphyses | ends of the long bones, made of spongey bone which is filled with red bone marrow
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| articular cartilage | covering the epiphyses, a smooth surface that assist in joint function
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| metaphysis | the growth plate, between the diaphysis and the epiphysis
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| bone matrix consist of: | calcium phosphate
92/3 of the weight) and calcium hydroxide and collagen fibers
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| lamellae | layer of bone matrix
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| osteocytes | bone cells, live in a pocket called lacuna, maintain and monitor the protein and mineral content of the matrix and can assist in the repair of bone
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| osteoblasts | "bone builder" produce bone matrix, process called osteogenesis
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| Osteoprogenitor cells | stem cells which divide to maintain the population of osteoblasts--important in healing fractures
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| Osteoclasts | "bone destroyers" descendants of monocytes (white blood cells) remove bone matrix by dissolving with acids and enzymes this reabsorption process is called OSTEOLYSIS
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| ossification | bone formation
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| calcification | depositing of calcium in body tissues
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| endochondral ossification | formation of long bones
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| intramembranous ossification | formation of flat bones (skull & mandible)
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| bone remodeling | constant breaking down and re-making of bones to ensure strength and durability
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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