Nerve palsies and Anatomy

Question 1

Ulnar nerve roots

Answer 1

C7, C8, T1

Question 2

where does the ulnar nerve lie in relation to bones?

Answer 2

behind the medial epicondyle

complications if you break the humeral condyles

Question 3

deficits when injured ulnar nerve:

Answer 3

motor: claw hand
motor: hypothenar and 1st dorsal interosseous wasting

sensory deficit: little finger

Question 4

bones in the hand!

Answer 4

carpals (lunate, scaphoid etc)

metacarpals

proximal phalanges

intermediate phalanges

distal phalanges

Question 5

what can you palpate in the anatomical snuffbox?

Answer 5

radial artery

scaphoid

trapezium

Question 6

what are the superficial flexors of the forearm?

Answer 6

flexor carpi ulnaris

palmaris longus

flexor carpi radialis

pronator teres

Question 7

where is the lumbar plexus?

Answer 7

lies on the surface of the quadratus lumborum and within the body of the psoas muscle

Question 8

most of the nerves of the lumbar plexus exit via what foramen?

Answer 8

sciatic

Question 9

what nerves do not leave the lumbar plexus via the scaiatic?

Answer 9

genitofemoral and ilioinguinal

femoral

obtruator

Question 10

the median nerve supplies what hand sensation?

Answer 10

palm of hand (thumb, index, middle and half of fourth finger)

Question 11

the ulnar nerve supplies what hand sensation?

Answer 11

pinky and half of fourth finger

Question 12

the radial nerve supplies what hand sensation?

Answer 12

back of hand

thumb, index, middle - but NOT tips of fingers

Question 13

what are the femoral nerve roots?

Answer 13

L2 -L4

Question 14

what is the largest branch of the lumbar plexus?

Answer 14

femoral nerve

Question 15

femoral triangle has VAN

Answer 15

femoral vein (next to ‘V’ of the legs)

femoral nerve

femoral artery

Question 16

sciatic nerve roots

Answer 16

L4-S3

Question 17

what is the largest nerve in the body?

Answer 17

sciatic

Question 18

what is the main branch of the sacral plexus?

Answer 18

sciatic nerve

Question 19

what muscles does the sciatic nerve supply?

Answer 19

the hamstrings

part of the adductor magnus

all lower leg and foot muscles (via terminal branches)

Question 20

common fibular nerve deficits cause

Answer 20

foot drop and slapping gait

Question 21

superficial palmar arch is which artery?

Answer 21

ulnar artery

Question 22

deep palmar arch is what artery?

Answer 22

radial artery

Question 23

S1, S2, S3, S4 penumonic

Answer 23

stand on 1
sleep on 2
sit on 3
shit on 4

Question 24

the hip joint is supplied by what 3 nerves?

Answer 24

obturator nerve

femoral nerve

lateral femoral cutaenous nerve

Question 25

what is the brachial plexus?

Answer 25

large network of nerves supplying the upper limb (extending from the cervical spine to the axilla)

Question 26

what order are the components of the brachial plexus?

Answer 26

Roots

Trunks

Divisions

Cords

Braches

Question 27

mid shaft humeral fracture would give what symptoms?

Answer 27

loss of wrist extension (wrist drop)

loss of digit extension

Question 28

mid shaft humeral fracture would affect what nerve?

Answer 28

radial