CNs

Question 1

mneumonic for CNs

Answer 1

Oh oh oh to touch and feel virgn girls’ vagina and hymens

Question 2

1

Answer 2

olfactory

Question 3

2

Answer 3

optic

Question 4

3

Answer 4

occulomotor

Question 5

4

Answer 5

trochlear

Question 6

5

Answer 6

trigeminal

Question 7

6

Answer 7

abducens

Question 8

7

Answer 8

facial

Question 9

8

Answer 9

vestibulocochlear

Question 10

9

Answer 10

glossopharyngeal

Question 11

10

Answer 11

vagus

Question 12

11

Answer 12

spinal accessory

Question 13

12

Answer 13

hypoglossal

Question 14

parasympathetic

Answer 14

3, 7, 9, 10

Question 15

sympathetic outflow

Answer 15

T1-L2

Question 16

CN I function

Answer 16

smell

Question 17

CN II function

Answer 17

sight

Question 18

CN III function

Answer 18

eye movement - MR, IO, SR, IR
Pupil constriction
Accomodation
Eyelid opening

Question 19

CN III foramen

Answer 19

Superior Orbital fissuer

Question 20

CN IV function

Answer 20

eye movement - SO

Question 21

CN V Function

Answer 21

Facial Sensation

Muscles of Mastication

Question 22

CN VI function

Answer 22

eye movement - LR

Question 23

CN VII function

Answer 23

factial movement
taste - anterior 2/3 tongue
lacrimation
salivation

Question 24

CN VIII function

Answer 24

hearing

balance

Question 25

CN IX function

Answer 25

taste - posterior 1/3rd of tongue
salivation
swallowing

Question 26

CN X function

Answer 26

phonation
swallowing
innervates viscera

Question 27

CN XI function

Answer 27

head & shoulder movement

Question 28

CN XII function

Answer 28

tongue movement (twelve, tongue towards)

Question 29

CN I clinical testing

Answer 29

any change in sense of smell

Question 30

CN II clinical testing

Answer 30

1. size, shape, symmetry of pupils
2. visual acuity
3. pupillary reflexes - direct, consensual, swinging, accommodation
4. Colour vision
5. visual fields
6. fundoscopy

Question 31

CN III, IV & VI clinical testing

Answer 31

1. look for ptosis
2. eye movements
3. cover testing

Question 32

CN V clinical testing

Answer 32

1. sensory - light touch & pinprick on forehead, cheek, jaw
2. motor - clench & feel master & temporalis. Open mouth against resistance.
3. reflexes - jaw jerk & corneal

Question 33

CN VII clinical testing

Answer 33

raise eyebrows 
close eyes & resist 
blow out cheeks & resist 
smile 
whistle 
any hearing changes?
any taste changes? 
look at EAM for herpes zoster

Question 34

CN VIII clinical testing

Answer 34

1. gross hearing
2. rinne’s
3. Weber’s
4. march on spot with arms outstretched and eyes closed
5. head thrust test

Question 35

CN IX & X testing

Answer 35

1. say ahh
2. gag reflex
3. cough
4. swallow

Question 36

CN XI testing

Answer 36

1. shrug shoulders against resistance

2. turn head against resistance

Question 37

CN XII testing

Answer 37

1. look at tongue for wasting/fasciculations
2. stick out tongue
3. finger on cheek, push tongue against it & assess power