GENERAL HISTOLOGY

Detailed explanation-1: -The periosteum covers all surfaces of the bone except for those capped with cartilage, as in the joints, and sites for attachment of ligaments and tendons. Fibrous cartilage often takes the place of the periosteum along grooves where tendons exert pressure against the bone.

Detailed explanation-2: -The periosteum consists of an outer “fibrous layer” and inner “cambium layer". The fibrous layer contains fibroblasts while the cambium layer contains progenitor cells which develop into osteoblasts that are responsible for increasing bone width.

Detailed explanation-3: -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-4: -The periosteum is the sheath outside your bones that supplies them with blood, nerves and the cells that help them grow and heal. The endosteum is a membrane that lines the center of your bones that contain bone marrow. The perichondrium is very similar to the periosteum.