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skeletal system

TermDefinition
osteocytes bone cells
osteoblasts form bone
osteoclasts break down
aixial 80 - skull, vertebrae, and ribs
appendicular 126- legs and arms
epiphyseal line growth plate
long bone helps with movement, longer than wide - arms and legs - compact
short bone support and stability with little movement, cube shaped - spongy bone
flat bone a large surface area for attaching to muscles, thin - compact and spongy bone
irregular odd shaped
sesamoid short round bones
diaphysis long shaft - compact bone
epiphysis ends of bone - spongy
medullary canal in diaphysis, filled with yellow bone marrow - fat cells
endosteum lines the medullary canal
red marrow in the ends of spongy bone
periosteum membrane covering outside the bone
articular cartilage covers ends of bone to protect and allow smooth gliding surface
foramen tunnel or hole for blood vessels and/or nerves
fossa a shallow depression
condyle smooth, rounded articular process; knuckle like projection
tuberosity small, rough projection
crest a prominent ridge
sinus chamber within a bone normally filled with air
spine a long sharp edge/projection
cartilage type of flexible connective tissue
ligaments bands of tough, flexible, dense connection tissue that connect bone to bone and stabilize joints
joints where 2 or more bones meet
tendons muscle to muscle
pelvic girdle lower limbs offering stability for lower limbs and is more strong to uphold upper body weight
pectoral girdle shoulder/upper limbs allowing flexibility and is lightweight
Created by: ebstaley
 

 



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