Endosteum
line medullary cavity
Endosteum is a thin layer of connective tissue that lines the inner surface of the bones. It is composed of osteoprogenitor cells, osteoblasts, and osteoclasts, which are involved in the growth, maintenance, and repair of bone tissue.
The osteoprogenitor cells and osteoblasts, which are responsible for bone formation, are found in the innermost layer of the endosteum. These cells differentiate and produce new bone tissue, which may then be used to repair bones that have been damaged or lost due to injury or disease.
The osteoclasts, on the other hand, are responsible for bone resorption, or the breakdown of bone tissue. They play a crucial role in maintaining the proper balance of bone tissue, helping to prevent conditions such as osteoporosis.
Disorders of the endosteum can lead to several bone diseases, including osteoporosis and osteomyelitis. Proper nutrition and exercise are essential in maintaining healthy bone tissue, as they provide the necessary nutrients and mechanical stress to keep the endosteum functioning optimally.
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