Color coded map of spinal cord at resource.? Below is a list of cord segments and associated functions.
Segmental Spinal Cord Level and Function | |
Level | Function |
Cl-C6 | Neck flexors |
Cl-T1 | Neck extensors |
C3, C4, C5 | Supply diaphragm |
C5, C6 | Shoulder movement, raise arm (deltoid); flexion of elbow (biceps); C6 externally rotates the arm (supinates) |
C6, C7, C8 | Extends elbow and wrist (triceps and wrist extensors); pronates wrist |
C7, C8, Tl | Flexes wrist |
C8, Tl | Supply small muscles of the hand |
Tl -T6 | lntercostals and trunk above the waist |
T7-Ll | Abdominal muscles |
Ll, L2, L3, L4 | Thigh flexion |
L2, L3, L4 | Thigh adduction |
L4, L5, S1 | Thigh abduction |
L5, S1 S2 | Extension of leg at the hip (gluteus maximus) |
L2, L3, L4 | Extension of leg at the knee (quadriceps femoris) |
L4, L5, S1, S2 | Flexion of leg at the knee (hamstrings) |
L4, L5, S1 | Dorsiflexion of foot (tibialis anterior) |
L4, L5, S1 | Extension of toes |
L5, S1, S2 | Plantar flexion of foot |
L5, S1, S2 | Nexion of toes |
Read More: Map of Spinal Column