The ulnar nerve, D E, lies on the ulnar border of the artery, and both are in general to be found ranging along the radial side of the tendon of the flexor carpi ulnaris muscle, T, and the pisiform bone, G. The situation of the radial artery is midway between the flexor carpi radialis tendon, I, and the outer border of the radius.
"Surgical Anatomy"
Joseph Maclise
In quadrupeds the palmar groove is especially determined by the pisiform bone, of which we have just mentioned the great development.
"Artistic Anatomy of Animals"
Édouard Cuyer
At its posterior and external part the pisiform bone forms a prominence.
"Artistic Anatomy of Animals"
Édouard Cuyer