The dense bone forming the outer layer of a bone is called?

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Multiple Choice

The dense bone forming the outer layer of a bone is called?

Explanation:
The dense bone forming the outer layer is compact bone (cortical bone). Its tightly packed matrix makes it very strong and rigid, creating the hard outer shell that protects the inner marrow and supports weight-bearing. The periosteum covers this outer surface as a fibrous membrane, supplying blood vessels and nerves and housing osteogenic cells, but it is a membrane, not the bone tissue itself. Inside the bone, the endosteum lines the internal surfaces, including the medullary cavity and spaces within spongy bone. Spongy bone, by contrast, is a lighter, porous lattice on the interior ends of bones.

The dense bone forming the outer layer is compact bone (cortical bone). Its tightly packed matrix makes it very strong and rigid, creating the hard outer shell that protects the inner marrow and supports weight-bearing. The periosteum covers this outer surface as a fibrous membrane, supplying blood vessels and nerves and housing osteogenic cells, but it is a membrane, not the bone tissue itself. Inside the bone, the endosteum lines the internal surfaces, including the medullary cavity and spaces within spongy bone. Spongy bone, by contrast, is a lighter, porous lattice on the interior ends of bones.

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