Diaphysis
shaft of long bone
Epiphysis
two ends of long bone
Epiphyseal Plate
growth plate composed of cartliage between each epiphysis & diaphysis
Epiphyseal Line
replaces the epiphyseal plate with bone when bone growth stops
Medullary Cavity
large cavity within the diaphysis of long bones filled with bone marrow
Bone Marrow
soft tissue inside the cavities within bones
Yellow Marrow
soft, fatty tissue (adipose) in adult long bone
Red Marrow
soft tissue produces red blood cells; in young people long bone
Periosteum
dense irregular connective membrane covering surface of bones; contains nerves & blood vessels nourishing the enclosed bone
Endosteum
thin connective membrane lining the medullary cavity of bone
Osteoblast
cells that form bone; mature osteoblasts become osteocytes
Osteocyte
mature bone cell surrounded by hard matrix; responsible for maintaining mature bone matrix
Osteoclast
bone cell that absorbs and removes unwanted bony tissue; important for repairing broken bones