After a bone has healed, bone-building cells wall themselves in and then _____.?

Question

Then does it:
a. send out filaments
b. slowly break down
c. turn into blood cells
d. start producing stem cells

Please help!

Answer 1

Medscape.com says:

"Osteocytes are mature osteoblasts trapped within the bone matrix. From each osteocyte a network of cytoplasmic processes extends through cylindrical canaliculi to blood vessels and other osteocytes. These cells are involved in the control of extracellular concentration of calcium and phosphorus, as well as in adaptive remodeling behavior via cell-to-cell interactions in response to local environment."

So the answer must be A.

Answer 2

cells that break down bone ... osteoclasts