Osteoid vs. Osteon

Osteoidadjective

Of, pertaining to, or characteristic of bone; bonelike

Osteoidnoun

An organic matrix of protein and polysaccharides, secreted by osteoblasts, that becomes bone after mineralization

Osteoidadjective

Resembling bone; bonelike.

Osteoid

In histology, osteoid is the unmineralized, organic portion of the bone matrix that forms prior to the maturation of bone tissue. Osteoblasts begin the process of forming bone tissue by secreting the osteoid as several specific proteins.

Osteonnoun

(anatomy) Any of the central canals, and surrounding bony layers, found in compact bone.

Osteon

The osteon or haversian system (named for Clopton Havers) is the fundamental functional unit of much compact bone. Osteons are roughly cylindrical structures that are typically between 0.25 mm and 0.35 mm in diameter.