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Anatomy- Ch 9
Anatomy- Ch 9 Joints learning outcome
Question | Answer |
---|---|
bony joint | an immovable joint formed when the space between two bones ossify |
fibrous joint | connected by collagen fibers that connect the matrix of one bone to another |
cartilagenous joint | held together by cartilage |
synovial joint | 2 bones are separated by a space that contains synovial fluid |
suture | immovable fibrous joints that bind the bones of the skull |
gomphoses | where teeth are held in their sockets |
syndemoses | where 2 bones are held together by cartilage |
synchrondrosis | bones are joined together by hyaline cartilage (occurs in the epiphyseal plate in children) |
symphsis | bones are joined by fibrocartilage |
ball and socket | hip and shoulder |
hinge | elbow and knee |
saddle | base of thumb |
pivot | between the first 2 vertabrae |
gliding (plane) | sternoclavicular |
condyloid (ellipsoid) | radiocarpal |
meniscus | in the knee, two cartilages extend inward from the left and right but do not entirely cross the joint |
tendon | a strip or sheet of tough collageous connective tissue that attaches muscle to bone |
ligament | similar tissue that attaches one bone to another |
bursa | a fibrous sac filled with synovial fluid located between adjacent muscles, where tendon passes over bone, or between bone and skin |
factors that determine range of motion in a joint | structure of articular surfaces, strength and tautness of ligaments and the joint capsule, and action of muscles and tendons |
osteoarthritis | results from years of joint where, articular cartilage softens and degenerates, accompanied by crackling sounds, and bone spurs develop on exposed bone tissue causing pain |
rheumatoid arthritis | autoimmune attack on joint, antibodies attack synovial membrane,inflammatory cells release enzymes in synovial fluid degrade the cartilage, bones ossify, tends to develop symmetrically |