sensory nerve action potential (SNAP) amplitude being decreased in 27% of patients. Ulnar sensory conduction velocity was decreased in 66% of patients with amplitude reduced in 30% of patients.

"That's the nerve that innervates the biceps and then also provides the sensory for the proximal forearm ... referencing the ulnar nerve — referred to as the funny bone — to help explain ...

The ulnar nerve is a “electrical cable” which transmits motor and sensory function down the arm to the hand and therefore compressing or stretching the ulnar nerve can cause loss of motor ...

ulnar, and radial nerves of an upper-limb amputee (bottom left). Each electrode contact evokes sensory percepts on small regions of the missing hand of the subject.