Where the triquetral sits in the skeleton

Frequently asked questions

Which part of the skeleton is the triquetral in?

The triquetral is one of the bones of the hand. The hand is made of eight carpal bones, five metacarpals and fourteen phalanges.

How many bones are in the hand?

Each hand has 27 bones: eight carpal bones in the wrist, five metacarpals in the palm and fourteen phalanges in the fingers.

Is there one triquetral or a pair?

The triquetral is paired: there is one on the left and one on the right, and this page covers both.

Does the triquetral form a joint with the ulna?

Not directly. A cartilage disc lies between the lower end of the ulna and the triquetral, so the wrist joint itself is formed mainly by the radius and the carpal bones.