Deep palmar arch
[1] The deep palmar arch lies upon the bases of the metacarpal bones and on the interossei of the hand.It is deep to the oblique head of the adductor pollicis muscle, the flexor tendons of the fingers,[1] and the lumbricals of the hand.Alongside of it, but running in the opposite direction—toward the radial side of the hand—is the deep branch of the ulnar nerve.[1] The deep palmar arch supplies the thumb and the lateral side of the index finger.[1] This article incorporates text in the public domain from page 595 of the 20th edition of Gray's Anatomy (1918)