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Skeletal System

Skeletal System Vocab

TermDefinition
skeletal system system made up of 206 bones that has several functions
joint place where two bones meet
hinge joint allows one direction movement (elbow)
ball and socket joint allows circular movement (shoulder)
gliding joint allows partial movement (wrist)
pivot joint allows up, down, side to side movement (head)
slightly movable joint limited movement (vertebrae)
immovable joint doesn't allow any movement (skull)
osteoporosis brittle bones caused by a lack of calcium
dislocation bone that is pushed out of a joint
arthritis painful swelling of the joints, caused by wearing away of cartilage
fracture a break in a bone
osteoblasts bone forming cells that replace cartilage
osteoclasts cells that break down bone and release calcium and phosphorus in the bloodstream
functions of the skeletal system protect organs, stores minerals, provides support, allows movement, produces red blood cells
calcium stored in bones and important for muscle contraction and proper functioning, builds strong bones
phosphorus stored in bones and helps in energy production
axial skeleton bones that support and protect the organs of the head, neck, and trunk
appendicular skeleton composed of bones that anchor the appendages of the body to the rest
periosteum outer membrane of bone that covers it, blood vessels and nerves can enter
compact bone hard, weight bearing part of bone that is strong because of tight bone cells
spongy bone strong but light-weight part of bone that is porous and found at the end of bone
marrow soft, fatty tissue found in the center of bone where blood cells are produced
ligaments elastic fibers which holds bones together
tendons connective tissue that joins muscles to bones
cartilage hard and flexible tissue that is in between bones, ears and nose, baby's are mostly this when born
Created by: coach houser
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