Osseous tissue Cell anatomy and Matrix physiology

Courtesy: Prof Knoppy

Bone has Cellular and Noncellular composition
Four types of cells are found in bones: Osteoprogenitor cells, Osteoblasts, Osteocytes and Osteoclasts

Osteoblasts are involved in bone deposition

The Osteoclasts are large multinucleate Giant cells with a ruffled border, and are involved in bone absorption.

Bone has orgnanic and inorganic component. Organic component consists of collagenous proteins, proteoglycans anf glycoproteins
Inorganic component consists of Calcium Phosphate and Calcium Hydorxide which combine to form Calcium Hydorxyapatite