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.It helps the bone to move in a 360o angle.
In a ball and socket (or spheroid) joint, the ball-shaped surface of one bone fits into the cuplike depression of another.
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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[edit] Movements
Movements possible are flexion-extension, abduction-adduction, rotation (triaxial) and circumduction.
[edit] Examples
Examples of this form of articulation are found in the hip and shoulder.[1]
[edit] References
[edit] Additional images
 Hip |
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