MYOTOMES: Segmental Innervation of Muscles

MYOTOMES: Segmental Innervation of Muscles Muscle Group Action Myotome Peripheral Nerve Shoulder Elbow Wrist Fingers Hip Knee Ankle Abduction Adduction Flexion Extension Extension Flexion Abduction Flexion Extension Abduction Flexion Extension Dorsiflexion Plantarflexion C5 C6-C8 C5 C7 C6 C8 T1 L2 S1 L5 L5 L3 L4 S1 Axillary Nerve Thoracodorsal Nerve Musculocutaneous Nerve Radial Nerve Radial Nerve Median Nerve Ulnar Nerve Nerve to PsoasInferior Gluteal Nerve Superior Gluteal Nerve Tibial Nerve Femoral Nerve Deep Peroneal Nerve Tibial NerveN.B. There is considerable overlap between myotomes for some actions. The myotomes listed are the dominant segments involved