Spinal Level |
Motor |
Reflex |
Sensation |
C3,4,5 |
Diaphragm |
|
Above Clavicle |
C5 |
Deltoid |
Biceps Tendon |
Upper Outer Arm |
C6 |
Wrist Extension, Biceps |
Brachioradialis Tendon |
Radial Forearm, Thumb,
Index Finger |
C7 |
Wrist Flexion, Triceps |
Triceps Tendon |
Posterior Forearm, Middle
Finger |
C8 |
Finger Flexion |
|
Ulnar Forearm, 4th and 5th Fingers |
T1 |
Interossei |
|
Upper Inner Arm |
T4 |
|
|
Nipples |
T10 |
|
|
Umbilicus |
L1 |
|
|
Upper Thigh |
L1,2,3 |
Hip Flexion |
Adductor |
|
L2,3,4 |
Knee Extension, Hip
Adduction |
|
|
L4 |
Foot Inversion (tibialis anterior), dorsiflexion |
Patellar Tendon |
Anterior Thigh, Medial
Leg, Inner foot |
L5 |
Toe Extension (Long
Extensors) |
|
Lateral Leg, Dorsum of
Foot, Great Toe |
L4,5,S1 |
Hip Abduction |
|
|
S1 |
Foot Eversion
(peroneus), Toe Flexion |
Achilles Tendon |
Lateral Leg, Lateral Foot
to 5th Toe |
L5,S1,S2 |
Plantar Flexion, Hip
Extension |
|
|
S2,3,4 |
Anal Sphincter |
Bulbocavernosus |
Perineum |