joints
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1/7이 집합의 용어 (7)
structural classes of synovial joints
amount of motion a joint allows is determined by shape and number of axes
plane joint
nonaxial, two bones flat surfaces sit next to each other
hinge joint
uniaxial, convex surface of one bone fits into concave depression of another bone
pivot joint
uniaxial, rounded surface of one bone fits into a groove on another bone, ring like ligaments hold them together
condylar joint
biaxial joint, oval convex surface fits into shallow concave of other bone
saddle joint
biaxial joint, each surface has convex and concave regions thats compliment each other
ball and socket joint
one surface is ball shaped and fits into a cup shaped surface of other bone