The structure that secures the periosteum to the underlying bone is known as what?

The structure that secures the periosteum to the underlying bone is known as what?

• A. Sharpey's fibers
• B. Endosteum
• C. Periosteum itself
• D. Endomysium

Answer: (A)

Sharpey’s fibers are the strong collagen fibers that extend from the periosteum into the underlying bone matrix, anchoring the periosteum securely to the bone and helping transmit mechanical loads from tendons and ligaments. Endosteum lines the inner surfaces of bone, not the outer attachment; endomysium surrounds individual muscle fibers, not bone; and the periosteum itself is the outer covering, not the securing structure.

Sharpey’s fibers are the strong collagen fibers that extend from the periosteum into the underlying bone matrix, anchoring the periosteum securely to the bone and helping transmit mechanical loads from tendons and ligaments. Endosteum lines the inner surfaces of bone, not the outer attachment; endomysium surrounds individual muscle fibers, not bone; and the periosteum itself is the outer covering, not the securing structure.