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Flashcards in Peripheral Nerves Deck (39):
1

Musculocutaneous n. spinal levels

C5-6

2

Axillary n. spinal levels

C5-6

3

Radial n. spinal levels

C5-T1

4

Median n. spinal levels

C6-T1

5

Ulnar n. spinal levels

C7-T1

6

Musculocutaneous n. innervation

Coracobrachialis, biceps, brachiais

7

Musculocutaneous n. sensory distribution

Anterolateral surface of forearm

8

Musculocutaneous n paralysis

Loss of elbow flexion when supinated, weak supination

9

Axillary n. innervation

Deltoid, teres minor

10

Axillary n. sensory distribution

Lateral arm over lower portion of deltoid

11

Axillary n. paralysis

Loss of shoulder ABD, weakened ER

12

Radial n. innervation

Triceps, anconeus, brachioradialis, supinator, wrist, finger, and thumb extensors

13

Radial n. sensory distribution

Posterior arm, posterior forearm, posterior radial side of hand

14

Radial n. paralysis

Loss of elbow, wrist, finger, and thumb extension

15

Median n. innervation

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

16

Median n. sensory distribution

Palmar aspect of thumb, second, third, and fourth (radial half) fingers

17

Median n. paralysis

Loss of pronation, thumb opposition, flexion, and adduction

18

Ulnar n. innervation

Flexor carpi unlaris, flexor digitorum profundus (medial half), fourth and fifth lumbricals

19

Ulnar n. sensory distribution

Fourth finger (medial portion), fifth finger

20

Sciatic n. spinal levels

L4-S3

21

Sciatic n. innervation

Hamstrings and adductor magus

22

Sciatic n. sensory distribution

Sciatic nerve branches into tibial, superficial fibular, and deep fibular. It's sensory distribution is though those nerves.

23

Sciatic n. paralysis

Loss of knee flexion, weak hip abduction, loss of all muscle function below the knee

24

Femoral n. spinal levels

L2-4

25

Femoral n. innervation

Sartorius, quads, iliacus, pectineus

26

Femoral n. sensory distribution

Middle anterior thigh and medial thigh proximal to the knee

27

Femoral n. paralysis

Loss of hip flexion and knee extension

28

Tibial n. spinal levels

L4-S3

29

Tibial n. innervation

Gastroc, soleus, plantaris, popliteus, tibialis posterior

30

Tibial n. sensory distribution

Posterior/lateral calf, ankle, and heel

31

Tibial n. paralysis

Loss of plantar flexion and supination

32

Superficial fibular n spinal levels

L4-S3

33

Superficial fibular n. innervation

Fibularis longus and brevis

34

Superficial fibular n. sensory distribution

Anterior/lateral distal lower leg and ankle and most of the dorsum of the foot

35

Superficial fibular n. paralysis

Loss of eversion

36

Deep fibular n. spinal levels

L4-S2

37

Deep fibular n. innervation

Tibialis anterior, extensor hallicus longus, extensor digitorum longus, fibularis tertius, first and second dorsal interossei, extensor digitorum brevis, extensor hallicus brevis

38

Deep fibular n. sensory distribution

Web space between first and second toes on the dorsum of the foot.

39

Deep fibular n. paralysis

Loss of dorsiflexion and weak foot intrinsics