The triquetrum (wrist bone)

What it does

The triquetrum sits in the first row of wrist bones on the little-finger side, between the lunate and the pisiform. It helps form the wrist joint and is a common site of small chip fractures after a fall on an outstretched hand.

Nearby

• The lunate (wrist bone)
• The pisiform (pea bone)
• The hamate (wrist bone)

Read more

• Triquetrum — Wikipedia