Roots/Myotomes Flashcards
Key Levels:
Bicep Flexion
Finger abduction
Plantar Flexion
Urethral & Sphincter Control

Wrist extensors
C6

L3
Psoas, quadriceps, thigh atrophy
Ankle Plantar Flexors
S1

L4
Tibialis anterior, extensor hallucis
Long Toe Extensors
L5

L5
Extensor hallucis, peroneals, gluteus medius, dorsi flexors, hamstrings, calf atrophy
C4
Trapezius, levator scapulae
C3
Trapezius, splenius capitis
“elbow flexors”

L2
Psoas, hip adductors
S1
Calf and hamstrings, wasting of gluteals, peroneals, plantar flexors
C8
Ulnar deviators, thumb extensors, thumb adductors

elbow extensors
C7

Finger ABductors
Little finger
T1

S2
Calf and hamstrings, wasting of gluteals, plantar flexors
‘Finger flexors’
Distal phalanx of middle finger

C6
Biceps, supinator, wrist extensors

Knee Extensors
L3

Hip Flexors
L2

C5
Supraspinatus, infraspinatus, deltoid, biceps

C2
Longus colli, sternocleidomastoid, rectus capitis
S4
Bladder, rectum
Ankle Dorsiflexors
L4

C7
Triceps, wrist flexors
Nerves from C5 only
Dorsal Scapular
Suprascapular
