Neuropathies: Nerve Levels and Function

Question 1

Motor, Sensation, and Reflexs for C5

Answer 1

Deltoid, Biceps

Sensation to lateral arm

Reflex: Bicep reflex

Question 2

Motor, Sensation, and Reflexs for C6

Answer 2

Wrist extension and elbow flexion

Sensation to radial forearm, thumb and index finger

Reflex: Brachioradialis

Question 3

Motor, Sensation, and Reflexs for C7

Answer 3

Wrist flexion, elbow extension, and finger extension

Sensation to middle finger

Reflex: Tricep

Question 4

Motor and Sensation for C8

Answer 4

Finger flexion

Sensation to ulnar forearm and pinky finger

Question 5

Motor and Sensation for T1

Answer 5

Finger abduction

Sensation for medial arm

Question 6

Radial nerve spinal levels

Answer 6

C5-C8

Question 7

Median nerve spinal levels

Answer 7

C5-T1

Question 8

Ulnar nerve spinal levels

Answer 8

C8-T1

Question 9

Function of Radial Nerve

Answer 9

Motor: Triceps brachii, anconeus, wrist extensors

Sensation: Majority of dorsum of the hand (via posterior interosseus branch) except for the hypothenar portion

Question 10

Function of Median Nerve

Answer 10

Forearm flexion and pronation

Wrist flexion and radial deviation

Thumb abduction and opposition

Index and middle finger abduction and flexion

Sensation to most of the palmer aspect of the hand except for 1/2 the 4th finger and all 5th finger

Question 11

Function of the Ulnar Nerve

Answer 11

Innervateds skin and muscles on the ulnar side of the forearm and hand

Deep branch in hand - motor innervation for interosseous muscles and adductor pollicis

Superficial branch in hand - sensory innervation to ring and pinky finger

Question 12

Common Fibular (Peroneal ) Nerve Spinal Levels

Answer 12

L4-S2

Question 13

Deep Fibular Nerve Spinal Levels

Answer 13

L4-S2

Question 14

Posterior Tibial Nerve Spinal Levels

Answer 14

L4-S2

Question 15

Lateral Femoral Cutaneous Nerve Spinal Levels

Answer 15

L2 & L3

Question 16

Motor and Sensation for L1, L2

Answer 16

Hip Flexion

Sensation L1: Inguinal crease

Sensation L2: Anterior Thigh

Question 17

Motor and Sensation for L2, L3

Answer 17

Knee Extension

Sensation L2: Anterior thigh

Sensation L3: Thigh just above the knee

Question 18

Motor, Sensation, and Reflex for L4

Answer 18

Ankle Dorsiflexion

Sensation: Medial leg and foot

Reflex: Knee jerk (patellar)

Question 19

Motor and Sensation for L5

Answer 19

Extensor hallicus longus

Sensation: Lateral leg and dorsum of foot

Question 20

Motor, Sensation, and Reflex for S1

Answer 20

Ankle plantaflexion

Sensation: Lateral foot and plantar foot

Reflex: Ankle jerk (Achilles)