Synonym: Articulatio sphaeroidea
Concerning the ball-and-socket-joint the center of the ball-shaped part represents the pivot point of the joint. There are three various axes of spacial movement by which a movement of any kind can be performed. Accordingly there are three degrees of freedom enabling movements in all three spacial planes. The nearly unlimited mobility of the ball-and-socket-joint is only restricted by the sourrounding articular capsule and ligaments, which serve a safe conducting of movements.
Examples for ball-and-socket-joints:
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