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EBR EMS Chapter 6 Definitions

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
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
Created by: hjkruse



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