GENERAL HISTOLOGY

Detailed explanation-1: -The periosteum is a highly vascular connective tissue sheath covering the external surface of all the bones except for sites of articulation and muscle attachment (Figure 1) [4]. The periosteum comprises of at least two layers, an inner cellular or cambium layer, and an outer fibrous layer [1].

Detailed explanation-2: -Human bone contains type III collagen, type VI collagen, and fibrillin: type III collagen is present on specific fibers that may mediate attachment of tendons, ligaments, and periosteum to calcified bone cortex.