Template:Actions by spinal nerves
From WikiMD's Wellness Encyclopedia
| Level | Motor function |
|---|---|
| C1–C6 | Neck flexors |
| C1–T1 | Neck extensors |
| C3, C4, C5 | Supply diaphragm (mostly C4) |
| C5, C6 | Move shoulder, raise arm (deltoid); flex elbow (biceps) |
| C6 | externally rotate (supinate) the arm |
| C6, C7 | Extend elbow and wrist (triceps and wrist extensors); pronate wrist |
| C7, C8 | Flex wrist; supply small muscles of the hand |
| T1–T6 | Intercostals and trunk above the waist |
| T7–L1 | Abdominal muscles |
| L1–L4 | Flex hip joint |
| L2, L3, L4 | Adduct thigh; Extend leg at the knee (quadriceps femoris) |
| L4, L5, S1 | abduct thigh; Flex leg at the knee (hamstrings); Dorsiflex foot (tibialis anterior); Extend toes |
| L5, S1, S2 | Extend leg at the hip (gluteus maximus); flex foot and flex toes |
