Metacarpophalangeal joint
The metacarpophalangeal joints (MCP) are between the bones in the hand at the palm called metacarpals, and the first finger bones called proximal phalanges.
| Metacarpophalangeal joint | |
|---|---|
 The palme side of the hand showing the bones and joints spread out. MCP joints in red. | |
 | |
| Details | |
| System | 099 |
| Identifiers | |
| MeSH | D008662 |
| TA | A03.5.11.501 |
| FMA | 35246 |
| Anatomical terminology | |
The palm bones have rounded ends, and the finger bone ends are shaped like caves. This helps the two bones fit together like a puzzle.
Structure
Ligaments
MCP joint movements, bottom of hand view.
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