EBR EMS Chapter 6 Definitions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| amphiarthrosis | slightly movable joinit such as the joint joining the two pubic bones
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| appendicular skeleton | the upper and lower extremeties
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| articular cartilage | a thin layer of cartilage covering each epiphysis
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| axial skeleton | bones of the skull, spine, chest and hyoid bone of the neck
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| canaliculi | tiny passageways within the bone
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| chondrocytes | cartilage cells
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| compact bone | the outer layer of bone that is hard and dense
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| concentric lamella | Rings that surround the central canal
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| cranium | skull
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| diaphysis | shaft of the bone
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| diathroses | freely movable joint
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| endochondral ossification | process of cartilage being formed into bone
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| endosteum | thin membrane that lines the medullary cavity
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| epiphyses | large end of the shaft of the bone
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| fontanels | soft spots on an infants cranium
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| hematopoiesis | process of blood cell formation
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| lacunae | spaces with the lamellae
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| medullary cavity | hollow area inside the diaphysis
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| osteoblasts | bone forming cells
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| osteoclasts | bone resorbing cells
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| osteocytes | living bone cells that lie within the lamellae
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| osteon | structural units within the matrix of the bone
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| osteoporosis | bone disease in which there is an excessive loss of calcified matrix and collangenous fibers from home
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| palpable |
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| pectoral girdle | shoulder girdle
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| pelvic girdle | connects the legs to the trunk
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| periosteum | strong, fibrous membrane covering a long bone
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| red bone marrow | soft connective tissue inside the hard walls of some bones
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| sinus | a space or cavity inside some of the cranial bones
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| sternoclavicular joint | the direct point of attachment between the bones of the upper extremity and the axial skeleton
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| synarthrosis | a joint in which fibrous connective tissue joins bones and hold them tightly together; sutures
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| synovial membrane | secretes a lubricating fluid that allows easier movement with less friction
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| thorax | chest cavity
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| trabeculae | needlelike threads of spongy bone that surround a network of spaces
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| yellow bone marrow | inactive form of marrow found in the adult skeleton
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