The median nerve runs the length of the arm, passes through the wrist (within the carpal tunnel), and ends in the hand. It controls some movement in the thumb and gives sensation to the thumb, index finger, middle finger, and half of the ring finger.
Primary Medical ReviewerKathleen Romito, MD - Family Medicine
Specialist Medical ReviewerHerbert von Schroeder, MD, MSc, FRCSC - Hand and Microvascular Surgery
Current as ofMarch 12, 2014
WebMD Medical Reference from Healthwise