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        | 206 bones that are very much alive |  | 
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        | two minerals that the bones store.. |  | Definition 
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        | longer than they are wide, found in arms and legs |  | 
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        | shaped like cubes, found in wrists and ankles |  | 
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        | thick, flat, and curved; found in ribs, breastbone, and skull |  | 
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        | differently shaped and are not classified as long, short, or flat. hip bones, vertebrae, and various bones of the skull |  | 
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        | bone cells that secrete an intercellular substance called matrix |  | 
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        | calcium and other minerals; these minerals are deposited around protein fibers |  | 
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        | minerals make bone tissue |  | Definition 
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        | refers to dense, hard bone tissue found primarily in the shafts of long bones and on the outer surfaces of other bones |  | 
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        | less dense bone tissue, located primarily at the ends of long bones and in the center of other bones |  | 
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        | the microscopic unit of compact bone is the ______, or ________________. |  | Definition 
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        | in spongy bone, the tissue is arranged in plates called __________. |  | Definition 
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        | spongy bone has what kind of appearance? |  | Definition 
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        | 2 reasons for spaces in spongy bone: |  | Definition 
 
        | 1. decrease the weight of the bone; 2. contain red bone marrow where blood cells are produced |  | 
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        | the long shaft of the bone, composed primarily of compact bone that provides considerable strength |  | 
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        | the enlarged ends of the long bone; meets with a second bone at a joint |  | 
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        | epiphyseal disc (growth plate) |  | Definition 
 
        | a growing bone contains a band of hyaline cartilage located at the ends of long bones |  | 
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        | hollow center of the diaphysis |  | 
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        | in infancy, the cavity is filled with |  | Definition 
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        | in the adult, the cavity is filled with |  | Definition 
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        | a tough fibrous connective tissue membrane that covers the outside of the diaphysis; protects the bone; serves as a point of attachment for muscle |  | 
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        | found on the outer surface of the epiphysis; forms a smooth, shiny surface that decreases friction with a joint |  | 
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        | babies contain over how many bones? |  | Definition 
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        | bones grow _______ and determine the _______ of an indivdual. |  | Definition 
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        | longitudinal bone growth occurs at the.. |  | Definition 
 
        | epiphyseal disc (growth plate) |  | 
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        | osteoblasts are? osteoclasts? |  | Definition 
 
        | boneforming cells; bone destroying cells |  | 
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