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bones jobs

protection,structure,protect organs,stores minerals,bloodcell production

types of bones

long bones, short bones, flat bones, irregular bones

long bones

longer than they are wide

fltat bones

thin flat and curved (STERNUM,SKULL)

short bones


irregular bones

verbrae,hip,some in skull

compact bones

hard dense found in the shaft of long bones & on the outside of other bones

haversian system (osteon)

concentric circles around large blood vessels

spongey bone

soft bone (cancellous) red bone marrow found


plates with holes in them found in flat,short and irregular bones and at he ends of long bones

long bones

diaphysis, epiphysis, epiphyseal disc,medullary cavity, endosteum,periosteum,articular cartilage


long shaft of the bone provide streghth


enlarged ends of the long bone

epiphyseal disc

(growth plate) ,band of the hyaline cartilage, longitudinal growth

medullary cavity

hollow center of the diaphysis ( in adults filled with yellow bone marrow,in infants red bone marrow for blood cell production


lining of the inside of the medullary cavity


tough connective tissue thats wrapped around the outside of the bone,servesas a point of attachmentfor muscles,contains blood vessels that nourish the underlying bone,protects bones

articular cartiliage

hyaline helps the bones side over each other smoothly,found on the outer surface of epiphysis


cartilage turning into bone, hormonal control


outside of bones ,bone bluiders (create bone)


inside of bones ,breaking down bone,release calicum into bloodstream this is called (bone resorption)

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