Ulnar collateral ligament (wrist)
Encyclopedia
The ulnar collateral ligament (internal lateral ligament, ulnar carpal collateral ligament) is a rounded cord, attached above to the end of the styloid process
of the ulna
, and dividing below into two fasciculi, one of which is attached to the medial side of the triquetral bone
, the other to the pisiform and flexor retinaculum
.
Ulnar styloid process
The styloid process of the ulna projects from the medial and back part of the bone; it descends a little lower than the head, and its rounded end affords attachment to the ulnar collateral ligament of the wrist-joint....
of the ulna
Ulna
The ulna is one of the two long bones in the forearm, the other being the radius. It is prismatic in form and runs parallel to the radius, which is shorter and smaller. In anatomical position The ulna is one of the two long bones in the forearm, the other being the radius. It is prismatic in form...
, and dividing below into two fasciculi, one of which is attached to the medial side of the triquetral bone
Triquetral bone
The triquetral bone is located in the wrist on the medial side of the proximal row of the carpus between the lunate and pisiform bones. It is on the ulnar side of the hand, but does not articulate with the ulna...
, the other to the pisiform and flexor retinaculum
Flexor retinaculum
Flexor retinaculum may be:* Flexor retinaculum of the hand, the retinaculum flexorum manus* Flexor retinaculum of the foot, the retinaculum musculorum flexorum pedis...
.