nerve root innervation

Trapezius

accessory nerve (CN XI) // cervical levels: C2,C3,C4

Deltoids

axillary nerve // cervical levels: C5,C6

Biceps

musculocutaneous nerve // cervical levels: C5,C6

Triceps

radial nerve // cervical levels: C6,C7,C8

Brachioradialis

Radial nerve// cervical levels: C5,C6

Flexor carpi radialis

Median nerve// Cervical levels: C6,C7

Flexor Carpi Ulnaris

Ulnar nerve// Cervical levels: C8,T1

Abductor Pollicis Brevis

Median nerve// Cervical levels: C8,T1

Abductor Digiti Minimi

Ulnar nerve// Cervical levels: C8,T1

iliopsoas

Femoral Nerve// Lumbar levels: L1,L2,L3,L4

Adductor Longus

obturator Nerve// Lumbar levels: L1,L2,L3,L4

Vastus medialis/ lateralis

Femoral Nerve// Lumbar levels: L2,L3,L4

Tibilias anterior

Deep fibular nerve// lumbar levels: L4,L5,S1

Biceps Femoris

Sciatic Nerve// Lumbar levels: L5, S1, S2

Extensor Hallucius Longus

Deep fibular nerve// lumbar levels: L5,S1

Gastrocnemius

Tibial Nerve// lumbar levels: L5,S1,S2

Peroneous Longus

Superficial fibular nerve// lumbar levels: L5,S1

Adductor Hallucis

Medial plantar nerve// lumbar levels: L5,S1,S2

Extensor Hallucis Brevis

Deep fibular nerve// lumbar levels: L5,S1

Anal sphincter

Pudendal nerve// lumbar levels: S2,S3,S4

Cremaster

Genitofemoral nerve// lumbar levels: L1,L2