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Lab 3 - Ex 7 Intro

Bone structure & classification

long bone ex: femur
short bone ex: carpals
flat bone ex: parietal
irregular bone ex: sphenoid
sesamoid bone ex: patella
sutural bone small bones within the sutures of the skull
axial skeleton the bones of the head and trunk - skull, spinal column, ribs, and sternum
appendicular skeleton the bones of the appendages - arms, legs, and their attachments
osteocyte a bone cell
lacuna the space that an osteocyte lives in
canaliculi small "canals" between lacuna
periosteum outer layer/covering of bone
endosteum layer lining the medullary cavity in bone
Volkmann's canal "sideways" canals that run between osteons
Haversian canal "up and down" canals in the middle of each osteon
concentric lamellae the layers that make up the osteon
circumferential the layers around the bone's edge
interstitial lamellae the layers that fill in between osteons
osteon the basic unit of bone structure
medullary cavity space in the center of the bone that is filled with marrow
perforating fibers fibers the perforate from the periosteum into the circumferential lamellae
Created by: mlmathis