Saddle joint
Saddle joint | |
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![]() 1: Ball and socket joint; 2: Condyloid joint (Ellipsoid); 3: Saddle joint; 4 Hinge joint; 5: Pivot joint; | |
![]() Ligaments of wrist. Posterior view. | |
Details | |
Identifiers | |
Latin | articulatio sellaris |
TA | A03.0.00.048 |
In a saddle joint (sellar joint, articulation by reciprocal reception) the opposing surfaces are reciprocally concave-convex.
Movements
The movements are as same as in the condyloid joint; that is to say, flexion, extension, adduction, abduction, and circumduction are allowed; but no axial rotation. Saddle joints are said to be biaxial, allowing movement in the sagittal and frontal planes.
Examples
The best examples of saddle joints are the metacarpal 1 (thumb) and the trapezium of the wrist.
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
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