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Nat. Review chpt. 5
Skeletal system
Question | Answer |
---|---|
Osseous tissue | Bone tissue |
Osteocytes | Bone cells |
Osteoclasts | Break down bone tissue |
Osteoblasts | Build or repair bone tissue |
Long bones | Longer then they are wide |
Short bones | Square or cube shaped bones |
Flat bones | Broad surfaces for muscle attatchment |
Irregular bones | Varied shapes |
Diaphysis | Shaft of a long bone |
Epiphyses | Ends of a long bone |
Epiphyseal plate | Growth plate |
Articular cartilage | Cartilage that lines bones where they connect to other bones |
Medullary cavity | Cavity in the diaphysis of long bones |
Periosteum | A layer of tissue that covers long bones |
Sharpey's fibers | Fibers that connect the periosteum to the surface of the bone |
Compact bone | Dense outer layer of bone and shafts of long bones |
Spongy bone | Porous bone tissue found in the epiphyses of long bones and interior of other bones |
Bone marrow | Soft material made up of connective tissue found in the cavities of bones |
Red marrow | Found mostly in spongy bone and produces blood cells |
Yellow marrow | Fatty tissue found in the medullary cavity |
Functions of bones | Framework for the body, protect delicate organs, serve as levers for muscles to act upon, storehouse for minerals, produce red and white blood cells and platelets |
Processes | Bumps on the surfaces of bones |
Tubercle | Small rounded bump for muscle attatchment |
Tuberosity | Large roughened bump |
Spine | Sharp pointed bump |
Condyle | Rounded bump for bone articulation |
Epicondyle | Bump above a condyle |
Crest | Ridge |
Line | Long bump |
Depressions and openings | Hollow or depressed areas (orifice or open space) |
Foramen | Rounded hole through a bone |
Fossa | Shallow depression in a bone |
Groove | Long depression/furrow in a bone |
Sinus | Cavity in a bone |
Meatus | Canal in a bone |
Fissure | Long narrow depression |
Suture | Where two skull bones have fused |
Osteon | Repeating patern that makes up bone |
Havirsion system | Osteon |
Osification | Cartlidge turns to bone through calcification |
Epiphyseal fracture | Seperation of the epiphyseal disk from diaphysis or epiphysis |
Shin splints | Damage to one of two groups of muscles along the shin bone that cause pain |