Ball and socket joint
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| Ball and socket joint | |
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| 1: Ball and socket joint; 2: Condyloid joint (Ellipsoid); 3: Saddle joint; 4 Hinge joint; 5: Pivot joint; | |
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| Capsule of shoulder-joint (distended). Anterior aspect. | |
| Latin | articulatio spheroidea |
| Gray's | subject #70 287 |
| Dorlands/Elsevier | a_64/12161549 |
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.
Examples of this form of articulation are found in the hip and shoulder and in for instance the gibbon also in the wrist.
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Amphiarthrosis - Symphysis - Gomphosis - Synovial joint (Hinge joint, Pivot joint, Condyloid joint, Saddle joint, Ball and socket joint, Gliding joint)
Kinesiology - Anatomical terms of motion - Agonist/Antagonist
Flexion/Extension - Adduction/Abduction - Internal rotation/External rotation - Supination/Pronation - Plantarflexion/Dorsiflexion - Eversion/Inversion - Elevation/Depression - Protraction/Retraction
