BIOL-3150 Chapter Notes - Chapter 6: Intramembranous Ossification, Hydroxylapatite, Flat Bone

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Found in places that absorb shock, perichondrium would have no: elastic cartilage advantage there, composed of highly branched elastic fibers, highly flexible form of support, surrounded by perichondrium. Growth patterns of cartilage: follow the same pattern as bone. Interstitial and appositional growth occurs simultaneously during embryonic development: however, interstitial growth declines rapidly as cartilage matures, later growth is mainly appositional, once fully mature, new cartilage growth typically stops, resumes when damage occurs. Bone markings: distinctive surface features that characterize each bone, can serve as an attachment site for skeletal muscle, can also serve as an entry site for nerves and vessels. Important for bone growth: functions for repair and remodeling. Composition of bone matrix: organic components (1/3 of total, cells, osteocytes, osteoblasts, osteoclasts, osteoid, made of collagen fibers and ground substance, created and secreted by osteoblasts. Closer inspection of compact bone composition: constructed of plates, or lamellae of bone, concentric lamellae: rings of bone immediately internal to the periosteum or.

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