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ellipsoidal joint

ellipsoidal joint: wrist joint
An ellipsoidal joint: the wrist joint
An ellipsoidal joint is a type of synovial joint in which there is an elliptical convex articular surface that fits into an elliptical concave articular surface. The movements of flexion, extension, abduction, and adduction can take place, but rotation is impossible. The wrist is a good example.

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