Collateral ligaments of metacarpophalangeal joints
| Collateral ligaments of metacarpophalangeal joints | |
|---|---|
Metacarpophalangeal joint and joints of digit. Ulnar aspect. | |
| Details | |
| Identifiers | |
| Latin | ligamenta collateralia articulationum metacarpophalangearum |
| TA98 | A03.5.11.502 |
| TA2 | 1836 |
| FMA | 42771 71407, 42771 |
| Anatomical terminology | |
In human anatomy, the radial (RCL) and ulnar (UCL) collateral ligaments of the metacarpophalangeal joints (MCP) of the hand are the primary stabilisers of the MCP joints.[1] A collateral ligament flanks each MCP joint - one on either side. Each attaches proximally at the head of the metacarpal bone, and distally at the base of the phalynx. Each extends obliquely in a palmar direction from its proximal attachment to its distal attachment.[2] The collateral ligaments allow spreading our the fingers with an open hand but not with the hand closed into a fist.
- ^ Berger, Richard A.; Weiss, Arnold-Peter C. (2004). Hand Surgery. Lippincott Williams & Wilkins. ISBN 9780781728744.
- ^ Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). p. 91. ISBN 978-0-7295-3752-0.