Difference between Osteoid and Osteon

What is the difference between Osteoid and Osteon?

Osteoid as a noun is an organic matrix of protein and polysaccharides, secreted by osteoblasts, that becomes bone after mineralization while Osteon as a noun is any of the central canals, and surrounding bony layers, found in compact bone.

We hope you now know whether to use Osteoid or Osteon in your sentence.