In ellipsoidal joint, the oval-shaped end of one bone fits into an elliptical cavity in anotehr, allowing all types of movement except pivoting.
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.
|The wrist joint.|