| C1-C4 |
Spontaneous breathing |
| C5 |
Shoulder abduction (deltoid) |
| C6 |
Wrist extension (carpi radialis longus and brevis) |
| C7 |
Elbow extension (triceps) |
| C8 |
Finger flexion (flexor digitorum superficialis/profundis, lumbricals) |
| T1 |
Finger adduction & abduction (dorsal/palmar interossei, abductor digiti quinti) |
| T1-T12 |
Intercostal and abdominal muscles |
| T12-L3 |
Hip flexion (iliopsoas) |
| L2-L4 |
Hip flexion, knee extension (quadriceps), hip adduction |
| L4 |
Ankle dorsiflexion and inversion (anterior tibialis) |
| L5 |
Big toe extension (ext hallucis longus), heel walk (ext digitorum), hip abduction (gluteus medius) |
| S1 |
Ankle plantarflexion and eversion (peroneus longus), toe walk (peroneus brevis), hip extension (gluteus maximus) |
| S2-S4 |
Rectal sphincter tone |
