Dermatomes and Myotomes Flashcards
Myotome
Deltoid
C5
Shoulder flexion and abduction
Myotome
Elbow flexion
C5, C6
Biceps Brachii
Shared with wrist extensors (ECRL, ECRB)
Myotome
Elbow extension
C7
Triceps Brachii
Shared with wrist flexors (FCU: Flexor carpi ulnaris, FCR: Flexor carpi radialis)
Myotome
FCU
C8
Ulnar deviation
Shared with Extensor carpi ulnaris (ECU)
Myotome
Interossei
C8
Digit abduction and adduction
Myotome
Hip flexion
L2, L3
Iliopsoas
Myotome
Quadriceps
L2, L3, L4
Knee extension
Myotome
L4
Ankle dorsiflexion
Tibialis anterior
Myotome
S1
Plantarflexion, Eversion
Gastrocnemius; Peroneus longus, Peroneus brevis
Myotome
L5
Great toe extension
Extensor Hallucis Longus (EHL)
Dermatome
C2
Occipital protuberance
Dermatome
C3
Supraclavicular fossa
Dermatome
C4
Acromioclavicular joint
Dermatome
C5
Lateral epicondyle
Dermatome
C6
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