Nerve palsies!

Question 1

How can I remember the dermatomes for the posterior limb runnuing downwards?

Answer 1

4 S’s represent S1-S4 (stand, sleep, sit, shit)

Question 2

What is hiltons law

Answer 2

Nerves crossing a joint supply the muscles acting on it and the joint itself

Question 3

What nerves supply the hip joint?

Answer 3

Ob, Fem and lat Fem.cut

Question 4

What does Erb’s plasy look like

Answer 4

arm in porters tip position

Question 5

Cause of Erb’s palsy?

Answer 5

C5, 6 damage (deltoid & shoulder muscles, brachialis & biceps)

Question 6

What are the roots of the radial n.

Answer 6

C5-T1

Question 7

What artery is the radial nerve closely associated with?

Answer 7

Profunda brachii artery

Question 8

What are the deficits of radial nerve palsy?

Answer 8

wrist drop and sensory deficit in the 1st dorsal web space

Question 9

What area of the humerus is the radial nerve at risk of injury?

Answer 9

spiral groove of the humerus

Question 10

What are the roots of the median nerve?

Answer 10

C7-T1

Question 11

what artery is the median nerve closely associated with?

Answer 11

Brachial artery

Question 12

What area is at risk of median nerve damage?

Answer 12

volar aspect of the wrist and the cubital fossa, it is also a complicaiton of carpal tunnel syndrome

Question 13

What are the deficits of median nerve damage?

Answer 13

thenar wasting, pointing finger and sensory deficit over the volar aspect of the thumb

Question 14

What are the roots of the ulnar nerve?

Answer 14

C7-T1

Question 15

Where is the ulnar nerve at risk of injury?

Answer 15

behind the medial epicondyle of the humerus/ Olecranon fossa

Question 16

What are the deficits of ulnar nerve palsy?

Answer 16

claw hand, hypothenar wasting and sensory deficit over the little finger

Question 17

What are the roots of the femoral nerve?

Answer 17

L2-L4

Question 18

What is the relation of the femoral nerve to the femoral artery?

Answer 18

Lateral

Question 19

What does the femoral nerve supply?

Answer 19

Quadriceps

Question 20

What are the roots of the lateral femoral cutaneous nerve? And where is it located?

Answer 20

L2,L3. lies on the iliacus muscle, exits the pelvis under the lateral end of the inguinal ligament

Question 21

What is the function of the lateral femoral cutaneous nerve?

Answer 21

sensory to the lateral aspect of the thigh, compression causes “meralgia paraesthetica”

Question 22

What are the roots of the Sciatic nerve?

Answer 22

L4-S3

Question 23

Where does the Sciatic nerve exit and what does it run deep to?

Answer 23

exits pelvis through sciatic foramen below piriformis muscle, running deep to the gluteus maximus . It is also the largest nerve in the body and the main branch of the sacral plexus (broad and flat with an accompanying artery)

Question 24

What does the sciatic nerve supply?

Answer 24

Hamstrings, adductor magnus and all lower leg and foot muscles via terminal branches

Question 25

How is the Sciatic nerve at risk?

Answer 25

Posterior dislocation of the hip, IM injections and during surgery

Question 26

What are the roots of the common fibular nerve?

Answer 26

L4-S2 (smaller and more lateral branch of the sciatic nerve, passes around the the lateral aspect of the neck of the fibula, divides into the superficial and deep fibular nerve, communicating branch to the sural nerve)

Question 27

What nerve is effected in anterior shoulder dislocation?

Answer 27

Axillary nerve

Question 28

Nerve effected in humeral shaft dislocation?

Answer 28

Radial nerve

Question 29

Nerve effected in hip dislocation

Answer 29

Sciatic nerve

Question 30

Nerve effected in humeral surgical neck fracture?

Answer 30

Axillary nerve

Question 31

Nerve effected in fibula fracture?

Answer 31

Peroneal nerve

Question 32

Nerve effected in cubital fossa syndrome

Answer 32

Ulnar nerve

Question 33

Nerve effected in knee disloaction

Answer 33

Peroneal nerve

Question 34

Nerve effected in elbow dislocation

Answer 34

Ulnar nerve

Question 35

What is the presentation of a axillary nerve palsy?

Answer 35

Parathesia over the badge area and weak abduction (due to deltoid denervation)

Question 36

Presentation of Ulnar palsy

Answer 36

Clawed hand

Question 37

Presentation of sciatic and peroneal palsies

Answer 37

Foot drop and high stepping gait

Question 38

way to remember what cords give off which Branches

Answer 38