2009년 3월 31일 화요일

Saddle joint

자료: Wikipedia, http://en.wikipedia.org/wiki/Saddle_joint


Saddle joint
1Ball and socket joint2Condyloid joint (Ellipsoid);3: Saddle joint; 4 Hinge joint5Pivot joint;
Ligaments of wrist. Posterior view.
Latinarticulatio sellaris
Gray'ssubject #70 286

In a saddle joint (sellar jointarticulation by reciprocal reception) the opposing surfaces are reciprocally concave-convex.

Contents

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[edit]Movements

The movements are the same as in a condyloid joint; that is to say, flexionextension,adductionabduction, and circumduction are allowed; but no axial rotation.

[edit]Examples

The best example of this form is the carpometacarpal joint of the thumb.[1]

[edit]References

[edit]External links

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