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Ch. 5 Vocab
| Term | Definition |
|---|---|
| What are the functions of the bone? | 1. SUPPORT 2. PROTECTION 3. MOVEMENT 4. STORAGE 5. BLOOD CELL FORMATION |
| Classification of the bone (tissue and groups) | - compact bone: dense & smooth, but under a microscope there are many tiny passages for nerves & blood vessels - spongy bone: spongy in appearance; many open spaces |
| What are the two subdivisions of the skeleton? | - axial skeleton: trunk of the body - appendicular skeleton: attachments of the axial |
| proximal epiphysis | - end of long bone closest to the point of attachment - composed of mostly spongy bone enclosed by a thin layer of compact bone |
| diaphysis | - shaft of the long bone - composed of compact bone |
| distal epiphysis | - end of long bone furthest from point of attachment - composed of mostly spongy bone enclosed by thin layer of compact bone |
| articular cartilage | - covers external surface - made of hyaline (glassy, transparent) cartilage - decreases friction at joint surfaces |
| spongy bone | - composed of small needle like pieces of bone and lots of open space - spongy look |
| epiphyseal line | - remnant of the epiphyseal plate - seen in adult bones |
| periosteum | - outside covering of the diaphysis - perforating (Sharpey's) fibers secure periosteum to underlying bone |
| compact bone | - dense and looks smooth - under microscope there are many tiny passages for nerves and blood vessels |
| medullary cavity | - cavity of the shaft, primarily a storage are for the adipose (fat) tissue |
| endosteum | - a delicate connective tissue lining |
| yellow bone marrow | - adipose (fat) tissue, stored in medullary cavity |
| perforating (Sharpey's) fibers | - connective tissue fibers that secure the periosteum to the underlying bone |
| nutrient arteries | - arteries used to give nutrients to the bone |
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emarroquin
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