A patient complains of numbness and tingling in the right th…

A patient complains of numbness and tingling in the right thumb and index finger on the palmar (volar) side of the hand/wrist. The patient is suspicious of C5-C6 as a potential spinal source of symptoms. However, the patient is also familiar of the ___________ nerve as a possible peripheral nerve entrapment/injury as reproducing symptoms in this region.