Dermatomes origins and myotomes weakness
C2
OCCIPUT, temple, and forehead
Weakness include sternocleidomastoid
C3
ENTIRE NECK, cheek, mandible, and temporal area
Weakness include Trapezius
C4
CLAVICULAR AREA, shoulder, and upp scapular area
Weakness include Trapezius and leavator scap
C5
DELTOID AREA, anterior aspect of arm, and based of thumb
Weakness include supraspinatus, infraspinatus, DELTIOD, and biceps
C6
ANTERIOR ARM RAIDATING TO THUMB SIDE
Weakness include BICEPS, SUPINATOR, and wrist extensors
C7
Along index/long/ring finger
Weakness include TRICEPS and wrist extensors
C8
Along ring/little finger
Weakness include THUMB EXTENSION
T1
Medial aspect of fore arm
No rooted weakness (if so it is due to diseases)
L1
Groin
No rooted weakness
L2
Front of thigh to knee
Weakness include PSOAS and hip adductors
L3
Medial lower leg
Weakness include QUADS and psoas
L4
Dorsum of foot to big toe
Weakness include ANTERIOR TIB and extensor hallucis
L5
Dorsum of foot to 2nd to third toe
Weakness include DORSIFLEXION and extensor hallucis
S1
Lateral aspect of foot and plantar aspect
Weakness include CALF, hamstring, PLANTAR FLEXORS, and peroneals
S2
Posterior medial leg
Same as S1 without peroneals