Transition block: anatomy

Question 1

What is Guyon’s canal?

Answer 1

ulnar tunnel
where ulnar nerve passes through wrist
if compression here –> only hypothenar and intrinsic muscles of hand

Question 2

Which ankle ligament is most likely to be strained?

Answer 2

anterior talofibular (inversion injury)

Question 3

LOAF is the portion of the hand supplied by the median nerve. What does this stand for?

Answer 3

lumbricals (first 2)
opponens pollicus
abductor pollicus brevis
flexor pollicus brevis

Question 4

If patient has ulnar nerve compression what is not affected?

Answer 4

thenar eminence

lumbricals (first 2)

Question 5

Which nerve supplies the muscles of

a) posterior arm
b) anterior arm
c) posterior forearm
d) anterior forearm
e) hand

Answer 5

a) radial
b) musculocutaneous
c) radial
d) median
e) ulnar

Question 6

Where is posterior tibial artery pulse felt?

Answer 6

posterior to medial malleolus

Question 7

Exception to supply of anterior forearm

Answer 7

medial half of flexor digitorum profundus

flexor carpi ulnaris

Question 8

Wasting of dorsal interosseoi in ulnar nerve injury is called?

Answer 8

guttering

Question 9

Which ligament is injured in

a) Inversion of ankle?
b) eversion of ankle?

Answer 9

a) anterior talofibular

b) deltoid ligament

Question 10

Signs of sciatica

Answer 10

loss of plantar flexion

numb lateral leg and foot

Question 11

Difference between loss of sensation in a dermatomal pattern and peripheral nerve pattern (cutaneous nerve)

Answer 11

dermatome = single spinal nerve

cutaneous nerve = combination of peripheral rami for nerves f

Question 12

L5 goes from where to where

Answer 12

lateral leg to the big toe

Question 13

L5 goes from where to where

Answer 13

lateral leg to the big toe

Question 14

Hip flexion

Answer 14

femoral nerve

Question 15

Muscle supply to

a) anterior thigh
b) posterior thigh
c) medial thigh
d) lateral leg
e) anterior leg
f) posterior leg

Answer 15

a) femoral
b) sciatic
c) obturator
d) superficial fibular
e) deep fibular
f) tibial

Question 16

Which action is plantar flexion?

Answer 16

going on your tip toes

Question 17

Job of

a) anterior thigh?
b) medial thigh?
c) posterior thigh?

Answer 17

a) extend leg at knee joint
b) adduction at hip
c) extend at the hip, and flex at the knee

Question 18

Which of the quadriceps femoris muscles crosses the hip joint?

Answer 18

rectus femoris

Question 19

Major flexor of hip joint

Answer 19

iliopsoas

Question 20

Abduct hip joint

Answer 20

gluteus medius and minimus

Question 21

surgical neck of humerus injures which nerve?

Answer 21

axillary nerve

Question 22

supracondylar #of humerus will injure?

Answer 22

median nerve

brachial artery

Question 23

if midshaft humerus fracture injures radial nerve will they be able to extend elbow?

Answer 23

yes usually branches to triceps already given off

Question 24

olecranon fracture will damage?

Answer 24

ulnar nerve

Question 25

Where does the posterior longitudinal ligament run?

Answer 25

runs down posterior aspect of vertebral bodies

Question 26

What does the straight leg raise test?

Answer 26

stretches sciatic nerve

Question 27

In S1& S2 impingement there could be weak

Answer 27

hip lateral rotation & hip abduction; ankle plantarflexion, eversion, toe dorsiflexion & plantarflexion; diminished ankle jerk

Question 28

Foot drop is caused by injury to which nerve?

Answer 28

common fibular

Question 29

Supply to sole of the foot

Answer 29

S1 | medial plantar, lateral plantar, tibial (heel)

Question 30

A 45 year old man presents with an uncomfortable swelling visible and palpable in the posteromedial aspect of the knee? ``` A. great saphenous vein (phlebitis) B. tibial nerve (neuroma) C. small saphenous vein (varicosity) D. biceps femoris tendonitis E. popliteal artery (aneurysm) ```

Answer 30

A

Question 31

Which compartment of the lower limb is supplied by the tibial nerve?

Answer 31

posterior leg

Question 32

Predominant movement of a) lateral leg b) posterior thigh c) anterior leg d) medial thigh e) posterior leg

Answer 32

a) eversion b) flexion of knee and extension of the hip c) dorsiflexion d) adduction of hip e) plantar flexion

Question 33

In trendelenburg's, does the hip tip towards or away from the affected side?

Answer 33

away from

Question 34

What are the abductors of the hip?

Answer 34

gluteus medius and minimus

Question 35

Causes of Trendelenburg's sign

Answer 35

congenital hip dislocation

Question 36

Back pain better walking uphill

Answer 36

spinal stenosis

Question 37

Which arteries supply the foot?

Answer 37

anterior and posterior tibial

Question 38

Where is the primary motor cortex?

Answer 38

the precentral gyrus

Question 39

What do the posterior rami supply?

Answer 39

has motor and sensory function | strip between scapula straight down the back

Question 40

Is hyperreflexia seen in an UMN or LMN lesion?

Answer 40

UMN lesion

Question 41

Where does a purely motor or purely sensory stroke affect?

Answer 41

lacunar stroke affects internal capsule

Question 42

Where is lumbrosacral plexus?

Answer 42

pelvic cavity

Question 43

What sits in front of sacrum?

Answer 43

rectum

Question 44

Unable to perform straight leg raise + knee pain

Answer 44

part of extensor mechanism: quadriceps tendon patella patella tendon