Lamellae - layer of compact bone , Osteon - structural unit of compact bone, Trabeculae - lattice structure of spongy bone, Canaliculi - tiny canals connecting the lacunae, through which osteocytes can interact, Lacunae - spaces where osteocytes live inside the bone matrix, Matrix - consists of collagen fibers and mineral salts, mostly calcium phosphate crystals; the combination of organic and inorganic components give bones their strength, Yellow Marrow - fat cell storage; inside the medullary cavity, Red Marrow - site of hematopoiesis; inside cavities of spongy bone, Compact Bone - dense, smooth bone made up of osteon units, Spongy Bone - latticed, irregular bone composed of trabeculae; trabecular cavities are filled with red marrow, Osteogenic Cells - stem cells which will divide and differentiate into osteoblasts, Osteoblasts - bone-building cells; secrete matrix which mineralizes into bone, Osteocytes - mature bone cells which live in lacunae; maintain bone tissue by communicating with osteoblasts and osteoclasts to carry out bone remodeling, Osteclasts - large, multinucleated cells made of old white blood cells; enzymatically reabsorb bone, Hematopoiesis - red blood cell formation, Diaphysis - shaft of a long bone; made up of compact bone; contains medullary cavity, Epiphysis - end of a long bone; made of compact bone surrounding spongy bone; contains red marrow, Medullary Cavity - cavity within the diaphysis of long bones containing yellow marrow, Periosteum - outer membrane of a bone; holds blood vessels and acts as an anchor for tendons and ligaments, Endosteum - inner membrane of a bone; covers the trabeculae and lines the medullary cavity,

Bone Physiology Vocabulary

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