Nerve Palsies

Question 1

Erb’s Palsy affects which plexus

Answer 1

Brachial

Question 2

Erb Palsy associated with

Answer 2

Porter’s Tip Position

Question 3

Brachial Plexus Lesions associated with

Answer 3

Upward Traction eg Breech delivery
T1 Damage (Intrinsic muscles)

Question 4

Axillary Nere is what roots

Answer 4

C5/6

Question 5

Axillary nerve wraps around where

Answer 5

surgical neck of humerus

Question 6

Axillary nerve supplies which muscles

Answer 6

deltioid and teres minor

Question 7

Axillary nerve supplies skin over where

Answer 7

lateral arm

regimental badge area

Question 8

Axillary nerve commonly occurs in which conditions

Answer 8

Shoulder Dislocation

Fracture Surgical Neck of Humerus

Question 9

Radial Nerve roots

Answer 9

C5,6,7,8 and T1

Question 10

Radial nerve supplies where in arm

Answer 10

Triceps

Question 11

Radial nerve runs in which groove

Answer 11

Radial groove of humerus as it passes from medial to lateral

Question 12

Radial nerve supplies

Answer 12

BCR, ECRL and ECRB before dividing into PIN (motor) and SRN (sensory) branches

Question 13

Radial nerve commonly occurs in

Answer 13

Entrapment
Saturday Night Palsy
Honeymoon Palsy
Crutch Palsy

Question 14

Symptoms of Radial Nerve Palsy depends on site eg Axilla

Answer 14

loss of elbow extension, wrist extension and sensory changes forearm and hand

Question 15

Symptoms of Radial Nerve Palsy depends on site eg Arm

Answer 15

: loss of wrist extension and sensory loss

Question 16

Symptoms of Radial Nerve Palsy depends on site eg forearm

Answer 16

loss of finger extension (PIN)

Question 17

Symptoms of Radial Nerve Palsy depends on site eg wrist

Answer 17

: loss of sensation (SRN) eg. handcuffs

Question 18

medial nerve roots

Answer 18

C5,6,7,8 and T1

Question 19

median nerve supplies

Answer 19

Flexors of Forearm (Bar FCU and medial half of FDP), LOAF muscles
Supplies sensation to radial 3.5 digits

Question 20

carpal tunnel floor made up of

Answer 20

carpal bones

Question 21

carpal tunnel roof made up of

Answer 21

flexor retinaculum

Question 22

carpal tunnel contents

Answer 22

FDS x4, FDP x4, FPL and median nerve ie. 9 tendons and a nerve

Question 23

causes of carpal tunnel syndrome

Answer 23

developmental
distal radius fracture
ganglion
fibroma
lipoma
RA
Gout
TB
Amyloid
Pregnant
Hypothyroid

Question 24

Carpal Tunnel Syndrome presentation

Answer 24

Nocturnal pain and parasthesia in part or all of the median nerve distribution

Wasting of the thenar muscles

ABP Power

Question 25

Tests for Carpal Tunnel

Answer 25

Tinnels | Phalens

Question 26

Ulnar nerve roots

Answer 26

C8 and T1

Question 27

Ulnar nerve has no branches in

Answer 27

arm

Question 28

ulnar nerve enters forearm

Answer 28

between two heads of FCU

Question 29

ulnar nerve supplies

Answer 29

medial half of FDP, FCU and all intrinsic muscles in hand BAR LOAF. Sensation to ulnar 1.5 digits

Question 30

Cubital Tunnel present

Answer 30

between Medial epicondyle and olecranon, with fascial bands from FCU as roof

Question 31

most common nerve palsy

Answer 31

nerve entrapment

Question 32

cubital tunnel symptoms

Answer 32

numbness on ulnar side of hand and difficulty with fine tasks.

Question 33

Ulnar nerve palsy presents with

Answer 33

Wasting of muscles: 1st webspace (often most marked) Guttering Hypothenar wasting

Question 34

Ulnar Claw hand presents with

Answer 34

Hyperextension at MCPJ, flexion at IPJ’s

Question 35

Ulnar Paradox

Answer 35

A distal lesion has worse clawing than a proximal lesion, due to intact long flexors with a distal lesion

Question 36

How to test ulnar nerve

Answer 36

``` Froment Test Key muscles: ADDUCTOR Pollicis (ULNAR NERVE) FLEXOR Pollicis Longus (MEDIAN NERVE) If Ulnar nerve not working, the patient will cheat and use FPL instead of Adductor Pollicis ```

Question 37

Lateral Femoral Cutaneous Nerve roots

Answer 37

L2/3

Question 38

Lateral Femoral Cutaneous Nerve where

Answer 38

lies on surface of iliacus muscle; usually exits pelvis under lateral end of inguinal ligament, but variable

Question 39

Lateral Femoral Cutaneous Nerve supplies

Answer 39

sensory to lat aspect thigh

Question 40

Lateral Femoral Cutaneous Nerve compression causes

Answer 40

“meralgia paraesthetica”

Question 41

sciatica nerve roots

Answer 41

L4-S3

Question 42

largest nerve in body

Answer 42

sciatic

Question 43

main branch of sacral nerve

Answer 43

sciatic

Question 44

sciatic nerve exits pelvis through

Answer 44

sciatic foramen below piriformis muscle

Question 45

sciatic nerve runs deep to

Answer 45

gluteus maximus muscle

Question 46

sciatic nerve supplies

Answer 46

supplies hamstring muscles in thigh (posterior) and part of adductor magnus, and all lower leg and foot muscles via terminal branches (tibial and common fibular nerves) - height of division variable (really 2 nerves)

Question 47

sciatic nerve at risk when

Answer 47

at risk from posterior dislocation of hip, intra-muscular injections and during surgery (division devastating)

Question 48

common fibular nerve roots

Answer 48

L4-S2

Question 49

common fibular nerve branch of

Answer 49

sciatic nerve

Question 50

common fibular nerve passes around

Answer 50

lat neck of fibula

Question 51

common fibular nerve divides into

Answer 51

superficial and deep fibular nerves

Question 52

common fibular nerve deficit causes

Answer 52

foot drop and slap gait

Question 53

most common injured nerve in low limb

Answer 53

common fibular nerve