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Skeletal System HB

QuestionAnswer
crani- skull
clast- breaking down
cephal- head
epi- upon
femor- femur
inter- between
-blast immature cell, germ cell
osteo- bone
peri- surrounding, around
-physis growth
trabecul- little neck
Functions of the skeletal system 1) support 2) protection 3) movement 4) storage
Two main regions of long bones 1) diaphysis 2) epiphyses
Diaphysis shaft, long part of long bone
epiphyses ends of bone
epiphyseal plate thin layer of cartilage; growth plate
articular cartilage external layer of cartilage which provides smooth movement of joints and cushion from shock
What fills the medullary cavity of long bones? red bone marrow in young people and yellow in older people
What is made within the bone marrow? hematopoiesis (blood cells)
___________ bone marrow fills the cavity medullary cavity in young people. Age causes the red marrow to be replaced with fatty _____________ bone marrow. red / yellow
periosteum tough outer connective tissue layer of bone
trabeculae (little beams) found in the lattice of spongy bone
What is found between the trabeculae of spongy bone? marrow and blood vessels
osteon cylinders of compact bone
lamellae concentric circles of osteons
Haversian canal central canal in the lamellae that contains blood vessels and nerves
Volkmannn's Canals perpendicular canals that connect the Haversian canalsosteocytes
ostesocytes bone cell derived from osteoblasts that has been surrounded by calcified extracellular material -mature bone cells
osteoclasts cell that digests the extracellular material of bone -stimulated by the parathyroid hormone -breakdown bone
osteoblasts bone forming cell
Created by: LFeldmann
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