Worlds of David Darling
Encyclopedia of Science
Home > Encyclopedia of Science

saddle joint

saddle joint: carpometacarpal joint
A saddle joint: the carpometacarpal joint
A type of synovial joint in which the articular surfaces are reciprocally concavoconvex and resemble a saddle on a horse's back. Saddle joints permit flexion, extension, abduction, adduction, and rotation. The best example of this type of joint is the carpometacarpal joint of the thumb.

Related entry

human skeleton human skeleton

Related category