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EMG nerve roots

EMG nerve roots in IOM

QuestionAnswer
CN IX Stylopharnygeus
CN V Temporalis, masseter
C2 Sternocleidomastoid
C3 (2) Trapezius, sternocleidomastoid
C4 (2) Trapezius, levator scapulae
C5 (2) Deltoid, biceps
C6 (5) Biceps, triceps, brachioradialis, pronator teres, flexor carpi radialis
C7 (4) Triceps, pronator teres, flexor carpi radialis, forearm extensors
C8 (3+) Triceps, ulnar forearm muscles, all hand intrinsic muscles (APB, 1st doral interossei, adductor digiti minimi)
T1 Intrinsic hand muscles, flexor carpi ulnaris
T2 Intercostal muscles, paraspinal muscles
T3 Intercostal muscles, paraspinal muscles
T4 Intercostal muscles, paraspinal muscles
T6 Intercostal muscles, paraspinal muscles, upper rectus abdominis
T7 Upper rectus abdominis, paraspinal muscles, intercostal muscles
T8 Upper rectus abdominis, paraspinal muscles, intercostal muscles, middle rectus abdominis
T9 Middle rectus abdominis, paraspinal muscles, intercostal muscles
T10 Middle rectus abdominis, lower rectus abdominis, paraspinal muscles, intercostal muscles
T11 Lower rectus abdominis, paraspinal muscles, intercostal muscles
T12 Lower rectus abdominis, paraspinal muscles, intercostal muscles
L1 (3 +/-2) Quadratus lumborum, paraspinals, cremaster +/- iliopsoas +/- internal oblique
L2 (4) Iliopsoas, adductor longus, quadriceps, adductor magnus
L3 (4) Quadriceps, adductor longus, adductor magnus, iliopsoas
L4 (4) Quadriceps, tibialis anterior, adductor longus, adductor magnus, iliopsoas
L5 (3) Tibialis anterior, peroneus longus, adductor magnus
S1 Gastrocnemius, abductor hallucis
S2 Gastrocnemius, abductor hallucis
S2-S5 Anal sphincter, urethral sphincter
Created by: schmittse