MICROANATOMY

Detailed explanation-1: -The periosteum is composed of two layers: The outer firm and a fibrous layer made up of collagen and reticular fibers and an inner proliferative cambial layer. The periosteum is identifiable on the outer surface of the bone; both layers of the periosteum can be differentiated.

Detailed explanation-2: -The periosteum is a dense, fibrous connective tissue sheath that covers the bones. The outer layer, made up of collagen fibers oriented parallel to the bone, contains arteries, veins, lymphatics, and sensory nerves. The inner layer contains osteoblasts (i.e., cells that generate new bone formation).

Detailed explanation-3: -The tough, thin outer membrane covering the bones is called the periosteum. Under the hard outer shell of the periosteum are tunnels and canals. Through these, blood and lymphatic vessels carry nourishment for the bone. Muscles, ligaments, and tendons may attach to the periosteum.

Detailed explanation-4: -Periosteum layers The periosteum has two layers. The outer layer protects the inner layer and the bone beneath it. It’s made of thick collagen fibers. Most of the periosteum’s blood vessels and nerves are in the outer layer.

Detailed explanation-5: -The periosteum is a membrane that covers the outer surface of all bones, except at the articular surfaces (i.e. the parts within a joint space) of long bones. Endosteum lines the inner surface of the medullary cavity of all long bones. The periosteum covers the outside of bones.