Axial Skeleton

and

Appendicular skeleton

Skull,thorax, and vertebral column

and

bone of the limbs and pectoral pelvic gridles

Femur

expanded area found at each end of the bone

and

narrow zone that connect epiphysis to shaft of the bone

and

is long and tubular

Osteocytes

• mature bone cell
• maintain protein and mineral contentof surrounding matrix
• secret chemical that dissolve the adjacent matrix

osteogenesis

_osteoblast

_and

_osteoclast

prodece new bone marrow

and

cell that remove and recyle bone matrix

osteolysis

(loose)

Basic functional unit of mature bone is osteon

it consist of osteocytes organized around a central canal and seperated by lamillae

Gigantism

and 

acromegaly

overproduction of growth hormone before puberty rich

overproduction of growth hormone after puberty rich

calcitonin

and

calcitriol

which decrease blood calcium level by inhibiting osteoclast and osteoblast continue depositing calicium in bone

while

calcitriol increase calcium absortion in intestine and stimulate calicium resoption fromm the bone

open fracture 

and 

close fracture

is a break in bone in which bone pierces the skin

and

is break in the bone in which no bone breaks the skin

compact bone

and

spongy bone

lies over spongy bone and make body's diaphylysis

and

spongy bone is flat, and irregular bones;found in epyphysis of long bone