ABSITE - ortho/neuro

Question 1

ulnar nerve motor distribution

Answer 1

wrist flexion
intrinsic musculature of hand
finger abduction

Question 2

ulnar nerve sensory distribution

Answer 2

5th and 1/2 of 4th fingers

back of hand

Question 3

ulnar nerve injury manifests as

Answer 3

claw hand

Question 4

cubital tunnel syndrome involves this nerve

Answer 4

ulnar nerve

Question 5

median nerve motor distribution

Answer 5

thumb apposition (OK sign)
thumb abduction
finger flexors

Question 6

median nerve sensory distribution

Answer 6

most of palm

1st 3 1/2 fingers on palmar side

Question 7

median nerve injury manifests as

Answer 7

decreased thumb movement

fingers extended

Question 8

carpal tunnel syndrome involves this nerve

Answer 8

median nerve

Question 9

radial nerve motor distribution

Answer 9

wrist extension
finger extension
thumb extension
triceps

Question 10

radial nerve sensory distribution

Answer 10

1st 3 1/2 fingers on dorsal side

Question 11

musculocutaneous nerve function

Answer 11

motor to biceps
motor to brachialis
motor to coracobrachialis

Question 12

axillary nerve function

Answer 12

deltoid abduction

sensory to deltoid

Question 13

obturator nerve function

Answer 13

hip adduction

Question 14

superior gluteal nerve function

Answer 14

hip abduction

Question 15

inferior gluteal nerve function

Answer 15

hip extension

Question 16

femoral nerve function

Answer 16

knee extension

Question 17

herniation affecting L1-L3 nerves causes:

Answer 17

weak hip flexion

Question 18

herniation affecting L4 nerve causes:

Answer 18

weak knee extension (quadriceps)

weak patellar reflex

Question 19

herniation affecting L5 nerve causes:

Answer 19

weak dorsiflexion (foot drop)
decreased sensation in big toe web space

Question 20

herniation affecting S1 nerve causes:

Answer 20

weak plantarflexion
weak Achilles reflex
decreased sensation in lateral foot

Question 21

anterior shoulder dislocation injures ___

Answer 21

axillary nerve

Question 22

posterior shoulder dislocation injures ___

Answer 22

axillary artery

Question 23

proximal humerus fx injures ___

Answer 23

axillary nerve

Question 24

mid-shaft (spiral) humerus fx injures ___

Answer 24

radial nerve

Question 25

distal (supra-condylar) humerus fx injures ___

Answer 25

brachial artery
anterior interosseus artery
may lead to forearm compartment syndrome (Volkmann’s contracture)

Question 26

elbow (ulnar) dislocation injures ___

Answer 26

brachial artery

Question 27

distal radial fx injures ___

Answer 27

median nerve

Question 28

anterior hip dislocation injures ___

Answer 28

femoral artery

femoral nerve

Question 29

posterior hip dislocation injures ___

Answer 29

sciatic nerve

Question 30

distal (supra-condylar) femur fx injures ___

Answer 30

popliteal artery

Question 31

posterior knee dislocation injures ___

Answer 31

popliteal artery

Question 32

fibula neck fx injures ___

Answer 32

common peroneal nerve

Question 33

forearm fx injures ___

Answer 33

ulnar nerve

radial nerve

Question 34

lateral knee injury injures ___

Answer 34

anterior cruciate ligament
posterior cruciate ligament
medial meniscus
medial collateral ligament

Question 35

anterior lower leg compartment contains

Answer 35

anterior tibial artery

deep peroneal nerve

Question 36

lateral lower leg compartment contains

Answer 36

superficial peroneal nerve

Question 37

deep posterior lower leg compartment contains

Answer 37

posterior tibial artery
peroneal artery
tibial nerve

Question 38

superficial posterior lower leg compartment contains

Answer 38

sural nerve

Question 39

compartment syndrome affecting anterior lower leg compartment manifests as

Answer 39

foot drop

decreased sensation to webspace between 1st and 2nd toes

Question 40

superficial peroneal nerve injury manifests as ____

Answer 40

inability to evert the foot

loss of sensation over dorsum of foot (except 1st webspace)