Ligament · Hand

Palmar intercarpal ligament

Short bands running between neighbouring carpal bones on the palm side of the wrist. The strongest of them radiate from the head of the capitate out to the scaphoid and the triquetral, an arch drawn in older texts as a V or a delta — which is where the alternative names arcuate and deltoid ligament come from. They sit deep, beneath the carpal tunnel and everything in it, so nothing about them can be felt from the surface. Their work is to hold the head of the capitate up into the socket formed by the proximal row, so the two rows do not shear apart when you push through the heel of the hand.