Carpal tunnel syndrome

Compressed as it passes through space between the carpal bones and the flexor retinaculum. The median nerve supplies the muscles of the thenar eminence. The recurrent thenar nerve is the nerve that actually supplies the thenar eminence - however, it does not pass through the carpal tunnel individually; it actually branches off the median nerve beyond the carpal tunnel. Associations include pregnancy, acromegaly, and diabetes, as well as several other diseases. It may also be a complication of trauma to the forearm.