What is the main function of the periosteum?
What is the main function of the periosteum?
The periosteum helps bone growth. The outer periosteum layer contributes to the blood supply of your bones and the surrounding muscles. It also contains the network of nerve fibers that transmit messages throughout your body. The inner layer helps to protect your bones and stimulates repair after an injury or fracture.
What does the osteogenic do?
Osteogenic cells are the only bone cells that divide. Osteogenic cells differentiate and develop into osteoblasts which, in turn, are responsible for forming new bones. There is a continual balance between osteoblasts generating new bone and osteoclasts breaking down bone.
Does the periosteum have red bone marrow?
Red bone marrow fills the spaces between the spongy bone in some long bones. Each epiphysis meets the diaphysis at the metaphysis. The periosteum also contains blood vessels, nerves, and lymphatic vessels that nourish compact bone. Tendons and ligaments attach to bones at the periosteum.
What is bone periosteum?
The periosteum is a thin layer of connective tissue that covers the outer surface of a bone in all places except at joints (which are protected by articular cartilage). As opposed to bone itself, it has nociceptive nerve endings, making it very sensitive to manipulation.
What is the osteogenic layer made of?
The periosteum consists of dense irregular connective tissue. It is divided into an outer “fibrous layer” and inner “cambium layer” (or “osteogenic layer”). The fibrous layer contains fibroblasts, while the cambium layer contains progenitor cells that develop into osteoblasts.
What is an osteogenic reaction?
The stress on the bones that results from weight-bearing activities like running, jumping, and at times weight lifting, stimulates bone building. The amount of weight-bearing that causes this response from the bone is called “osteogenic loading” because it takes a certain “load” to stimulate the bone-building cells.
What is osteogenic nature?
Osteoinductivity or osteogenic property is the ability of the material to induce bone formation de novo or ectopically (in non-bone-forming sites).
Does periosteum contain blood vessels?
The outer layer of the periosteum is mostly made of elastic fibrous material, such as collagen. It also contains blood vessels and nerves. The blood vessels of the periosteum contribute to the blood supply of the body’s bones. They can pass into the dense and compact layer of bone tissue below, called the bone cortex.
Does the periosteum contain blood vessels?
What is periosteal thickening?
A periosteal reaction is the formation of new bone in response to injury or other stimuli of the periosteum surrounding the bone. It is most often identified on X-ray films of the bones.
What will happen to bone without periosteum?
As cavitation occurs at the ends of the mesenchymal/cartilaginous model the articular surfaces at the ends of bones are left without a periosteum, thereby allowing development of the articular cartilage [10].