EVERYDAY SCIENCE

Detailed explanation-1: -It also provides nourishment by providing the blood supply to the body from the marrow. The periosteum is attached to the bone by strong collagen fibers called Sharpey’s fibres, which extend to the outer circumferential and interstitial lamellae. It also provides an attachment for muscles and tendons.

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: -Sharpey’s fibres (bone fibres, or perforating fibres) are a matrix of connective tissue consisting of bundles of strong predominantly type I collagen fibres connecting periosteum to bone.

Detailed explanation-4: -The outer layer, the dura mater, is tough white fibrous connective tissue.

Detailed explanation-5: -periosteum, dense fibrous membrane covering the surfaces of bones, consisting of an outer fibrous layer and an inner cellular layer (cambium). The outer layer is composed mostly of collagen and contains nerve fibres that cause pain when the tissue is damaged.