Certain cases may be greatly benefited by sectioning the tendons of the external and middle flexors of the metacarpi.
"Common Diseases of Farm Animals"
R. A. Craig, D. V. M.
This will reveal the median nerve itself situated upon the red fibres of the flexor metacarpi internus muscle.
"Diseases of the Horse's Foot"
Harry Caulton Reeks
U. Extensor metacarpi pollicis.
"Surgical Anatomy"
Joseph Maclise