The outer layer of the bone is called the periosteum. This membrane layer of the bone is dense and made up of fibrous tissue. It also consists of nerves and blood vessels that provide blood flow to the bone. More »

Bone is made mostly of collagen and calcium. This combination works to make the bones strong and flexible at the same time, enabling them to be protective and rebound from stress fractures. More »

Cortical bone is a dense and rigid layer of calcium-rich osseous tissue that makes up the outer layer of a bone, explains InnerBody. This compact bone layer is cylindrical in shape with a honeycombed structure, providing... More »

The thin, tough membrane that covers bones is known as the periosteum. It typically serves as a protective layer for all areas of a bone, except where cartilage is present. More »

Cortical bone is a dense and rigid layer of calcium-rich osseous tissue that makes up the outer layer of a bone, explains InnerBody. This compact bone layer is cylindrical in shape with a honeycombed structure, providing... More »

Compact bone is the outer layer of a bone such as the tibia or fibula. Compact bone is also referred to as cortical bone. The compact bone is shaped like a cylinder and is extremely hard. More »

The compact bone is made up of a dense layer of calcium and minerals which makes it so hard that surgeons need a saw to cut through it. It is honeycombed with thousands of holes where nerves and blood vessels run, supply... More »