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Skeletal System

Science Grade 7

joint a place in the body where two or more bones connect
bone marrow produces red blood cells
The amount of bones in the adult human body. 206
catilage Hard, stiff, jelly-like material that is strong yet flexible.
pivot joint where there is rotation of one bone around another
ball and socket joint When one bone fits into another creating a circular motion
hinge joint two bones create a back and forth direction only
immovable joint A fixed joint because there is no movement
compact bone hardest part of the bone
periosteum tough outer membrane of bone
spongy bone found at the end of bones for added strengh
calcium A mineral that helps keep you bones strong and healthy
Created by: mrsrooney