GENERAL HISTOLOGY

Detailed explanation-1: -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-2: -The periosteum consists of an outer fibrous layer, and an inner cambium layer (or osteogenic layer). The fibrous layer is of dense irregular connective tissue, containing fibroblasts, while the cambium layer is highly cellular containing progenitor cells that develop into osteoblasts.

Detailed explanation-3: -The periosteum is composed of dense irregular connective tissue. This tissue layer is connected to or anchored to compact bone by connective tissue fibres called Sharpey’s fibres. These fibres are made of type I collagen, which enter the lamellae of compact bone.

Detailed explanation-4: -Cartilage has a covering made of dense irregular connective tissue called the periosteum. This statement is false. The periosteum covers the parts of the bone except for the areas where cartilage is present. The periosteum is categorized as connective tissue.