What role do osteoblasts and osteoclasts play in bone formation and remodeling?

Question

I know osteoblasts are bone forming cells, and osteoclasts are bone destroying cells. But I would like to know what role each plays in formation and remodeling. Any information would be great =)

Answer 1

Since you already know that osteoblasts deposit bone and osteoclasts resorb bone, here is a little more info on remodeling.

Bone continually remodels through processes that remove existing bone and deposit new bone. A young adult's skeleton replaces one-fifth of its bone tissue each year. Remodeling serves to adjust bone structure in response to changing stresses, and to maintain the proper level of blood calcium, a mineral essential to the functioning of all cells.

Remodeling normally occurs during bone growth, in response to physico-chemical factors such as stresses from exercise, during repair of injuries such as fractures, and during hormonal changes. Remodeling includes the sensing of environmental changes, the formation of new bone, and the removal of existing bone ("resorption"). Illnesses, such as osteoporosis, result from disturbances in the control of remodeling.

Answer 2

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RE:
What role do osteoblasts and osteoclasts play in bone formation and remodeling?
I know osteoblasts are bone forming cells, and osteoclasts are bone destroying cells. But I would like to know what role each plays in formation and remodeling. Any information would be great =)

Answer 3

Bone is remodeled by removing bone from one area and building it up elsewhere, and this is the function of the osteoclasts and osteoblasts respectively. It's like taking down a brick wall and building it up else where. If you don't use a bone, or don't put force on it, it will gradually shrink in mass and strength. Likewise, use of a bone increasing its bulk.

Answer 4

Osteoclasts And Osteoblasts

Answer 5

Osteoblasts And Osteoclasts