Dermatomes and Myotomes Flashcards
(38 cards)
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
Thumb
Dermatome
C7
Middle finger
Dermatome
C8
Little finger
Dermatome
T1
Medial epicondyle
Dermatome
T2
Apex of the axilla
Dermatome
T3
Midway between the apex of the axilla and the nipple line
Dermatome
T4
Nipple line
Dermatome
T5
Midway between T4 and T6
Dermatome
T6
Xiphoid process
Dermatome
T7
Midway between T6 and T8