Anatomy
Main shaft
Diaphysis
mature cells
osteocytes
contribute to shape, alignment, and positioning of body parts
support
development of bone
osteogenesis
break in bone
fracture
Tubelike, hollow space in diaphysis
Medullary Cavity
what are trabeculae
cancellous bone
protect delicate structures
protection
where are osteoblasts clustered together?
centers of ossification
what do fractures tear?
blood vessels
made of cancellous bone
Epiphyses
responsible for active erosian
osteoclasts
joints constitute levers which move as muscles contract
movement
when do bone matrix calcify?
when calcium salts are deposited
after fracture occurs, what initiates?
repair sequence
Cushions jolts and blows
Articular Cartilage
small cells that synthesize and secrete osteoids
Osteoblasts
reservoir for calcium, phosphorus, and other minerals
Mineral storage
where do blood cells enter the cartilage model
midpoint of diaphysis
repair tissues
calluses
Contains blood vessels that send branches into bone
Periosteum
Where do bone cells get their blood supply
internal medullary cavity
blood cell formation is carried out by myeloid tissue
hematopoisis
point of attachment joining the epiphysis to the shaft
Resting cartilage cells
blood clot occurring immediately after fracture
fracture hematoma