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chapter 6 SOD

QuestionAnswer
Skeletal Cartilage compromises most of the skelton in early fetal life; articular and nasal cartilage in adult skeleton
Perichondrium double layered serosa enclosing the heart and forming its superficial layer
Hylaine Cartilage the most abundant type of cartilage in the body; provides firm support with some pliability
Elastic Cartilage Cartilage with abundant elastic fibers; more flexible than hylaine cartialage
Fibrocartilage the most compressible type of cartilage; resistant to strech. forms vertebral discs and knee and joint cartilages
Appositional growth growth accomplished by th addition fo new layers onto those previously formed
interstitial growth the lacunae bound chondrocytes inside the cartilage divide and secrete new matrix, expanding the cartilage from within
Diaphysis elongated shaft of a long bone
Epiphysis the end of a long bone attached to the shaft
Axial Skeleton forms long axis of the body and includes the bones of skull vertebral column and rib cage
Appendicular Skeleton consists of bones of the upper and lower limbs and the girdles that attach the limbs to the axial skeleton
Compact Bone outer smooth layer
Spongy Bone internal taht has trabeculae
Medullary Cavity marrow cavity; in adults consists fat
Articular Cartilage Hylaine Cartilage covering bone ends at moveable joints
Periosteum Double layered connective tissue that covers and nourishes the bone
Osteoblasts Bone forming cells
Osteoclasts large cells that resorb or break done bone matrix
Endosteum Connective tissue membrane covering internal bone surfaces
Dipole the internal layer of spongy bone in flat bones
Osteomalacia disorder in which bones are inadequently mineralized; soft bones
Osteoporosis increased softening of the bone resulting from a gradual decrease in rate of bone formation
Pagets Disease Disorder charactersized by excessive bone break down and abnormal bone formation
Rickets analogies disease in children is accompanied by many of the same signs and symptoms
Osteon system of interconnecting canals in the microscopic structure of adult compact bone
Lamella a layer such as of bone matrix in Haversian systems of compact bone
Central canal the canal int he 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, connecting the vascualr and nerve supplies of the periosteum to those of the central canals and the medullary cavity
Osteocytes mature bone cell
Lacunae a small space, cavity, or depression
Canali Culus Extremely small tubular passage or channel
Osteoid unmineralized bone matrix
Osteogenesis the process of bone formation;ossifcation
Epiphyseal Plate Plate of hylaine cartilage at the junction of the diaphysis and epiphyisis that provides for growth in length of the long bone
Bone Remodling process involving bone formation and destruction in response to hormonal and mechanical factors
Bone Resporation the removal of osseous tissue
Hydroxyapatites mineral salts
Bone Markings projections that grow outward from the bone surface
Bone deposit occured where bone is injured or added bone strength is required
Created by: torib8_