Gross Anatomy of Bone: Periosteum and Endosteum definitions Flashcards
Gross Anatomy of Bone: Periosteum and Endosteum definitions
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Periosteum
A dense connective tissue covering the outer surface of bones, providing blood supply, nerves, and attachment points for tendons and ligaments. Endosteum
A thin membrane lining the inner surfaces of bones, consisting mainly of osteoprogenitor cells for bone remodeling. Dense Irregular Connective Tissue
Tissue composed mostly of collagen fibers running in various directions, providing strength and flexibility. Osteoprogenitor Cells
Bone stem cells found in the periosteum and endosteum, essential for bone growth and repair. Perforating Fibers
Collagen fibers that anchor the periosteum to the bone matrix, ensuring a tight connection. Fibrous Layer
The outer layer of the periosteum, rich in collagen, blood vessels, and nerves. Osteogenic Layer
The inner layer of the periosteum containing osteoprogenitor cells, crucial for bone cell development. Compact Bone
Dense bone tissue forming the outer layer of bones, providing strength and protection. Spongy Bone
Bone tissue with a porous structure, found at the ends of long bones and within the interior of others. Medullary Cavity
The central cavity of bone shafts where marrow is stored, lined by the endosteum. Collagen
A strong, rope-like protein that forms the structural framework of connective tissues. Tendons
Connective tissues that attach muscles to bones, facilitating movement. Ligaments
Connective tissues that connect bones to other bones, stabilizing joints. Bone Matrix
The intercellular substance of bone tissue, consisting of collagen fibers and mineral deposits. Trabeculae
The small, beam-like structures in spongy bone that provide structural support and house bone marrow.
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