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Joints

QuestionAnswer
purpose of joints allow motion, bear weight, provide stability, nourish cartilage through synovial fluid
types of joints fibrous, cartilaginous, synovial, nonaxial, uniaxial, biaxial, triaxial
fibrous joint thin layer of fibrous periosteum between two bones
types of fibrous joint synarthrosis, syndesmosis, gomphosis
synarthrosis suture joint; skull; provides shape and strength
syndesmosis ligamentous joint; distal tib/fib; small amount of twisting or stretching can occur
gomphosis tooth and wall of its dental socket
cartilaginous joint either hyaline cartilage or fibrocartilage between the two bones; vertebral joints
amphiarthrodial joint is the same as cartilaginous joint
amphiarthrodial joint small amount of motion, some compression, stability
synovial joint no direct union between the bone ends; cavity filled with synovial fluid and a sleeve like capsule
synovial joint outer layer fibrous tissue
synovial joint inner layer synovial fluid
articular surface of synovial joint smooth and covered with hyaline or articular cartilage
diarthrodial joint free motion, not as stable, greater motion
nonaxial joint linear movements, plane joint
plane joint joint surfaces are relatively flat and glide over one another instad of moving around the other
uniaxial joint angular motion occuring in one plane around one axis
types of uniaxial joints hinge, pivot
hinge joint sagittal plane, frontal axis, flexion, extension
pivot joint transverse plane, longitudinal axis, raidus privots on ulna with pronation, supination
biaxial joints 2 planes
Created by: jfunk98
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