Ball and socket joint
|Ball and socket joint|
|1: Ball and socket joint; 2: Condyloid joint (Ellipsoid); 3: Saddle joint; 4 Hinge joint; 5: Pivot joint;|
|Capsule of shoulder-joint (distended). Anterior aspect.|
|Gray's||subject #70 287|
A ball and socket joint (enarthrosis, spheroidal joint) is a joint in which the distal bone is capable of motion around an indefinite number of axes, which have one common center.
In a ball-and-socket (or spheroid) joint, the ball-shaped surface of one bone fits into the cuplike depression of another. Movements are flexion-extension, abduction-adduction, and rotation (triaxial) and circumduction;
The ball-and-socket joint is a movable joint, that consists of one bone that is rounded and that fits within a cuplike bone.
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