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This Concept Map, created with IHMC CmapTools, has information related to: bones, bones shapes Long bones – longer than they are wide Short bones- Cube-shaped bones of the wrist and ankle Bones that form within tendons (e.g., patella) Flat bones – thin, flattened, and a bit curved (e.g., sternum, and most skull bones) Irregular bones – bones with complicated shapes (e.g., vertebrae and hip bones), long bone composed of diaphysis, long bone composed of epiphyses, bones micro. struc of compact bone Osteocytes – mature bone cells Lacunae – small cavities in bone that contain osteocytes Haversian system, or osteon- the structural unit of compact bone elongated cylinder oriented parallel to the long axis Lamella – tubes composed mainly of collagen, each individual tube w/in osteon Haversian canal The canal in the center of each osteon that contains minute blood vessels and nerve fibers that serve the needs of the osteocytes. Perforating Canals Canals that run at right angles to the long axis of the bone,, bones structure long bone, bones markings Tuberosity – rounded projection Crest – narrow, prominent ridge of bone Trochanter – large, blunt, irregular surface Line – narrow ridge of bone Tubercle – small rounded projection Epicondyle – raised area above a condyle Spine – sharp, slender projection Process – any bony prominence Head – bony expansion carried on a narrow neck Facet – smooth, nearly flat articular surface Condyle – rounded articular projection Ramus – armlike bar of bone, bones structure flat bone, diaphysis Tubular shaft Composed of compact bone that surrounds the medullary cavity, Yellow bone marrow (fat) is contained in the medullary cavity, flat bone Thin plates of periosteum-covered compact bone on the outside with endosteum-covered spongy bone (diploë) on the inside, epiphyses Exterior is compact bone, interior is spongy bone, joint surf is covered w/ hyaline cartilage