Neuro: Muscle innervation

Question 1

Shoulder abduction

Answer 1

Deltoid
Axillary n
C5

Question 2

Elbow flexion

Answer 2

Biceps
Musculocutaneous n
C5,6

Question 3

Elbow extension

Answer 3

Triceps
Radial n
C7,8

Question 4

Wrist flexion

Answer 4

Flexor carpii
Median + Ulnar n
C6,7

Question 5

Wrist extension

Answer 5

Extensor carpii
Radial n
C7,8

Question 6

Finger flexion

Answer 6

FDP, FDS
Median + Ulnar
C8, T1

Question 7

Finger extension

Answer 7

Extensor digitorum
Posterior interosseous n
C7,8

Question 8

Finger abduction

Answer 8

Dorsal interossei
Ulnar
T1

Question 9

Finger adduction

Answer 9

Palmar interossei
Ulnar
T1

Question 10

Thumb abduction

Answer 10

Abductor pollicis brevis
Median
T1

Question 11

Thumb adduction

Answer 11

Adductor pollicis
Ulnar
T1

Question 12

Hip flexion

Answer 12

Iliopsoas
Femoral n
L1,2

Question 13

Hip adduction

Answer 13

Hip adductors
Obturator n
L2,3

Question 14

Hip abduction

Answer 14

Gluteus minimus, medius
Superior gluteal
L4,5

Question 15

Hip extension

Answer 15

Hip extensors
Inferior gluteal
L5, S1

Question 16

Knee extension

Answer 16

Quads
Femoral n
L3, L4

Question 17

Knee flexion

Answer 17

Hamstrings
Sciatic
L5, S1

Question 18

Ankle dorsiflexion

Answer 18

Tibialis anterior
Deep peroneal n
L5, S1

Question 19

Ankle plantarflexion

Answer 19

Gastrocnemius
Tibial n
S1, S2

Question 20

Foot inversion

Answer 20

Tibialis posterior
Tibial n
L4, L5

Question 21

Foot eversion

Answer 21

Peroneus longus
Superficial peroneal n
L5, S1

Question 22

Toe extension

Answer 22

EHL
Deep peroneal n
L5, S1

Question 23

Biceps reflex

Answer 23

C5,6

Question 24

Supinator reflex

Answer 24

C6,7

Question 25

Triceps reflex

Answer 25

C7,8

Question 26

Knee reflex

Answer 26

L3, 4

Question 27

Ankle reflex

Answer 27

S1, 2