Triquetrum
Os triquetrum
SkeletalSkeletonArmLeft and right
View left in 3D View right in 3D
- What it is
- Pyramidal bone on the little-finger side of the proximal row.
- Function
- Proximal-row carpal: adapts its position as the wrist bends so the hand moves smoothly on the forearm.
- Size
- ≈ 11 × 12 × 12 mm
- Clinical note
- Second most commonly fractured carpal, often as a dorsal chip.