carpometacarpal joint

Introduction

The synovial joints between the carpal & metacarpal bones. These articulations are plane type except that of the thumb, which is saddle shaped.

Innervation

• anterior interosseous branch of the median nerve
• posterior interosseous branch of the radial nerve
• dorsal & deep branches of the ulnar nerve

Arterial supply

• dorsal & palmar metacarpal arteries
• deep carpal & deep palmar arches

More general terms

• joint

More specific terms

• carpometacarpal joints of thumb

Additional terms

• carpometacarpal arthritis; carpometacarpal osteoarthritis