ANATOMY upper limb - 3rd year revision

Question 1

which nerve travels alongside the brachial artery

Answer 1

medium nerve

Question 2

midshaft of humerus fracture

Answer 2

radial nerve damage- but posterior arm (ie triceps etc) will probs be fine bc it branches off before mid humerus

Question 3

fracture of olecranon

Answer 3

ulnar nerve damage

Question 4

cubital tunnel compression

Answer 4

ulnar nerve damage

Question 5

carpal tunnel compression

Answer 5

median nerve damage

Question 6

ulnar nerve cutaneous innervation of hand

Answer 6

pinkie and medial half of ring finger (dorsal and palmar)

Question 7

median nerve cutaneous innervation of hand

Answer 7

lateral 3 1/2 digits of palm

Question 8

radial nerve cutaneous innervation of hand

Answer 8

lateral 3 1/2 digits of dorsal hand (posterior)

Question 9

radial nerve muscle innervation

Answer 9

posterior arm
posterior forearm

it ‘radiates’ down the back (also does most sensory innervation posteriorly)

Question 10

anterior arm muscle innervation

Answer 10

musculocutaneous nerve

Question 11

anterior forearm muscle innervation

Answer 11

median neve

apart from 2 supplied by the ulnar nerve - flexor carpi ulnaris and medial/ulnar half of flexor digitorum profundus

Question 12

majority of hand muscle innervation

what are the exceptions

Answer 12

ulnar nerve

except LOAF muscles - supplied by median nerve

Question 13

posterior forearm muscle innervation

Answer 13

radial nerve - posterior interosseous branch

Question 14

posterior arm muscle innervation

Answer 14

radial nerve

Question 15

LOAF muscles in hand innervation

Answer 15

median nerve

Question 16

what nerve goes through guyons canal

Answer 16

ulnar nerve

Question 17

which group of people get compression of guyons canal = ulnar nerve damage

Answer 17

cyclists

Question 18

trapezius innervation

Answer 18

CN XI

Question 19

serratus anterior innervation

Answer 19

long thoracic nerve

Question 20

which compartment is the coracobrachialis part of

Answer 20

anterior arm

= BBC (biceps brachii, brachialis, coracobrachialis)

Question 21

function of anterior arm

Answer 21

elbow flexion

Question 22

function of posterior arm

Answer 22

elbow extension

Question 23

function of anterior forearm

Answer 23

flex and pronate wrist

Question 24

function of posterior forearm

Answer 24

extend and supinate wrist

Question 25

which muscle in the anterior forearm has a dual nerve supply

Answer 25

flexor digitorum profundus

Question 26

which compartment is the brachioradialis in

Answer 26

posterior forearm

Question 27

where is the hypothenar eminence | what nerve supplies it

Answer 27

next to pinkie finger supplied by ulnar ``` Thenar = Thumb pinkie = ulnar side ```

Question 28

where is the thenar eminence | what nerve supplies it

Answer 28

next to thumb supplied by median nerve (one of the LOAF muscles) ``` Thenar = Thumb thumb = not on ulnar side = median ```

Question 29

is the hypothenar or the thenar eminence affected in carpal tunnel

Answer 29

thenar eminence - as supplied by the median

Question 30

LOAF muscles in hand supplied by median nerve

Answer 30

Lumbricals (2 of the 4, other 2 = ulnar supply) Opponens pollicis Abductor pollicis brevis Flexor pollicis brevis thenar eminence - 3 pollicis muscles = opponens, abductor, flexor

Question 31

what does the ulnar nerve supply in the hand

Answer 31

everything apart form 5 LOAF muscles (2 lubricals and 3 thenar eminence muscles (OAF))

Question 32

ulnar nerve palsy

Answer 32

claw hand