Which term is the inner lining of the bone cavity?

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Multiple Choice

Which term is the inner lining of the bone cavity?

Explanation:
Endosteum is the inner lining of the bone cavity. It forms a thin, vascular membrane that lines the medullary (marrow) cavity and the inner surfaces of the trabeculae in cancellous bone. This layer carries osteogenic cells that can become osteoblasts, enabling bone growth, repair, and remodeling from the inside. By contrast, the outer covering is the periosteum, which coats the exterior of bone; epiphysis refers to the end portion of a long bone, not a lining; and the remaining term isn’t a recognized anatomical name.

Endosteum is the inner lining of the bone cavity. It forms a thin, vascular membrane that lines the medullary (marrow) cavity and the inner surfaces of the trabeculae in cancellous bone. This layer carries osteogenic cells that can become osteoblasts, enabling bone growth, repair, and remodeling from the inside. By contrast, the outer covering is the periosteum, which coats the exterior of bone; epiphysis refers to the end portion of a long bone, not a lining; and the remaining term isn’t a recognized anatomical name.

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