Name: Extensor Digitorum Brevis
Action: Extends the phalanges of the middle three toes.
Innervation: Lateral terminal branch of the deep peroneal nerve, L5, and S1.
Note: This site, along with other muscles of the distal extremities, has been found to be optimal for tceMEPs. Additional muscle groups may be monitored to provide added information, but the data is generally considered to be less reliable.