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