Question

In bones, a layer of osteoblasts and osteoclasts line the interior of the bone (this cellular layer covers all trabeculae, is adjacent to the medullary cavity and lines the inside of osteons). This layer is called the endosteum. What is its role in bone?

Answer 1

Endosteum plays an important role in bone repair, bone remodelling and appositional bone growth.

Step-by-step explanation:

Endosteum consists of a soft and thin connective tissue that lines the cavity of femur and humerus. Some of the major functions of endosteum are as follows:

Bone remodelling: Endosteum can stimulate the bone resorption that leads to the formation of new bone from the outside.

Bone repair: Hematoma, at the time of bone injury causes the division of endosteal cells and helps in bone repair.

Appositional bone growth: Endosteum that line the osteoblast cell can secrete bone matrix and increases the bone diameter.