Nerves

Front 1

Olfactory

Back 1

Smell

Front 2

Optic

Back 2

Sight

Front 3

Oculomotor

Back 3

all eye movement except later and up and in

Front 4

Trochlear

Back 4

depresses the eye when medial can move it laterally

Front 5

Trigeminal

Back 5

muscles of chewing and sensation of the face

Front 6

Abducens

Back 6

eye lateral

Front 7

Facial

Back 7

Muscles of facial expression

Front 8

Auditory

Back 8

Balance and hearing

Front 9

Glossopharyngeal

Back 9

muscles of the pharynx and sensation to the back of the tounge

Front 10

Vagus

Back 10

motor and sensory to heart, lungs, pharynx, larynx, and viscera

Front 11

Spinal accesory

Back 11

sternocleidomastoid and trapezius muscles

Front 12

hypoglossal

Back 12

muscles of the tounge

Front 13

axillary nerve spinal cord segment

Back 13

C5, C6

Front 14

axillary nerve muscle innervation

Back 14

Deltoid, Teres minor

Front 15

axillary nerve sensory distribution

Back 15

lateral arm over the lower part of the deltoid

Front 16

axillary nerve motor features of paraylisis

Back 16

loss of shoulder abduction, weakened shoulder external rotation

Front 17

Musculocutaneous Nerve spinal cord segment

Back 17

C5, C6

Front 18

Musculocutaneous Nerve Muscle innervation

Back 18

Coracobrachialis, biceps, brachialis

Front 19

Musculocutaneous Nerve Sensory Distribution

Back 19

Anterolateral surface of forearm

Front 20

Musculocutaneous Nerve motor features of paralysis

Back 20

loss of forearm flexion when supinated, weakened supination

Front 21

Radial Nerver Spinal Segment

Back 21

C6, C7, C8, T1

Front 22

Radial Nerve Muscle innervation

Back 22

Triceps, anconeus, supinator, wrist, fingers, and thumb extensors

Front 23

Radial Nerve Sensory Distribution

Back 23

Posterior arm, posterior forearm, and radial side of posterior hand

Front 24

Radial Nerve Motor features of paralysis

Back 24

Loss of elbow, wrist, finger,and thumb extension

Front 25

Median Nerve Spinal Cord Segment

Back 25

C6, C7, C8, T1

Front 26

Median Nerve Muscle innervation

Back 26

pronators, wrist and finger flexors on the radial side, most thumb muscles

Front 27

Median Nerve sensory distribution

Back 27

Palmer aspects of thumb, second, third, and fourth (radial half), fingers.

Front 28

Median Nerve motor features of paralysis

Back 28

loss of forearm pronation, thumb opposition, flexion, and abduction

Front 29

Ulnar Nerve Spinal Cord Segment

Back 29

C8, T1

Front 30

Ulnar Nerve Muscle Innervation

Back 30

flexor Carpi ulnaris, flexor digitorum profundus (medial half), interossei, fourth and fifth lumbricles.

Front 31

Ulnar Nerve sensory distribution

Back 31

Fourth Finger (medial portion), fifth finger

Front 32

Ulnar Nerve motor featured of paralysis

Back 32

loss of wrist ulnar deviation, weakened wrist, finger flexion, weakened fourth and fifth finger flexion, loss of thumb adduction, loss of most intrinsics: (claw hand)

Front 33

Femoral Nerve Spinal Cord Segment

Back 33

L2, L3, L4

Front 34

Femoral Nerve Muscle Innervation

Back 34

iliopsoas, pectineus, quadriceps femoris

Front 35

Femoral Nerve Sensory Distribution

Back 35

Anterior and medial thigh, medial leg & Foot

Front 36

Femoral Nerve Motor features of paralysis

Back 36

weakened hip flexion, loss of knee extension

Front 37

Obturator Nerve Spinal Cord Segment

Back 37

L2, L3, L4

Front 38

Obturator Nerve Muscle innervation

Back 38

Hip adductors, external rotators, piriformis

Front 39

Obturator Nerve sensory distribution

Back 39

middle medial thigh

Front 40

Obturator nerve motor features of paralysis

Back 40

loss of hip adduction, weakened hip lateral rotation

Front 41

Sciatic Nerve Spinal Segment

Back 41

L4, L5, S1, S2, S3

Front 42

Sciatic Nerve muscle innervation

Back 42

hamstring muscles

Front 43

Sciatic Nerve Sensory distribution

Back 43

None

Front 44

Sciatic Nerve motor features of paralysis

Back 44

weakened hip extension, loss of knee flexion

Front 45

Tibial Nerve Spinal Cord Segment

Back 45

L4, L5, S1, S2, S3

Front 46

Tibial Nerve Muscle innervation

Back 46

popliteus, plantar flexors, tibialis posterior, medial and lateral plantar

Front 47

Tibial Nerve Sensory Distribution

Back 47

Posterior Lateral Leg, lateral foot

Front 48

Tibial Nerve motor features of paralysis

Back 48

loss of ankle plantarflexion, weakened ankle inversion, loss of toe flexion

Front 49

Peroneal Nerve Spinal Segment

Back 49

L4, L5, S1, S2

Front 50

Peroneal Nerve Muscle innervation

Back 50

Peroneals, (most superficial), Tibialis Anterior (deep peroneal), Toe Extensors (deep peroneal)

Front 51

Peroneal Nerve Sensory Distribution

Back 51

Anterior lateral aspect of foot and leg and foot.

Front 52

Peroneal Nerve motor features of paralysis

Back 52

loss of dorsiflexion, toe extension, and eversion