Blood cell formation.
Not a function of bone tissue but a function of a whole bone.
Occurs in the hollow space between bone tissue.
Stores calcium when too much in bloodstream, releases it when not enough in bloodstream. Controlled by hormone/endocrine system
Dense bone on the outer surface that forms a sturdy protective layer.
forms trebeculae on the interior of the bone
"growth plate" or site of growth at the ends of long bones.
("epi-"=upon, "physis"=growth plate
expanded area at the end of the bone, above the growth plate.
where diaphysis and epiphysis meet
the shaft or long portion of the bone
Inorganic portion of the Bone Matrix
Calcium and Phosphorus in crystal form.
Resists Compressive Forces
Organic portion of the Bone Matrix
Mostly (90%) Type 1 Collagen
Resist Tensile Forces
Hyaline Cartilage that covers the epiphysis where one bone forms a joint w/ another.
Reduces friction and absorbs shock
-Mesenchymal stem cell, differentiates into an osteoblast
-maintains population of bone cells (osteoblast cannot divide)
-active during bone growth and are reactivated during fracture repair
-produce and secrete components of bone matrix(osteoid)
-produce TNAP--essential for mineralization (hydroxyapatite)
-a mature osteoblast that as completely surrounded itself with bone matrix
-reside in lacunae
-cytoplasmic process housed in little tunnels, Canaliculi