Question

______ are thick bundles of collagen that extend from the periosteum into the bone extracellular matrix.

Answer 1

Collagen fibers extend from the periosteum into the bone extracellular matrix.

Step-by-step explanation:

Collagen fibers are thick bundles of collagen that extend from the periosteum into the bone extracellular matrix. The periosteum is a layer of connective tissue that covers the outer surface of bones.