Bone Formation and Function

The prime function of OSTEOBLASTS is to

• prevents osteocytes from forming

• resorb bone along the epiphyseal plate

• inhibit the growth of bone

• be involved in the production salts and collagen fibers

The prime function of OSTEOCLASTS is to

• prevent osteoblats from forming

• breakdown bone

• secrete calcium salts and collagen fibers

• form compact bone

in a bone that is no longer growing, where would one be most likely to find an osteoclast?

• under the periosteum

• epiphyseal plate

• articular cartilage

• Volkmann's canal

Destruction and remolding of bone may occur

• as bones change shape during growth

• as bones are subjected to varying patterns of stress

• during and following the healing of fractures

• when a bone is no longer growing

In the healing of bone fractures

• a blood clot forms around the break

• a callus is formed

• both intramembranous and endochondral ossification are involved

• the callus may eventually disappear

This one is part of bone modelling process...

• replacing

• renewing

• regeneration

• shaping

Which one is not part of bone structure?

• osteoid matrix

• non-collagenous protein

• lipid

• sugar

This cell provide mechanosensors of bone...

• chondrocyte

• osteoblast

• osteoclast

• osteocyte

Which one is the main regulator for osteoblastic bone formation?

• RANK

• RANK-L

• Wnt

• OPG

Which one is the step where osteoclast "eat" the bone?

• activation

• resorption

• reversal

• formation