Cranial nerves

Question 1

CNI

Answer 1

olfactory

Question 2

CNII

Answer 2

optic

Question 3

CNIII

Answer 3

oculomotor

Question 4

CNIV

Answer 4

trochlear

Question 5

CNV

Answer 5

trigeminal

Question 6

CNVI

Answer 6

abducens

Question 7

CNVII

Answer 7

facial

Question 8

CNVIII

Answer 8

vestibulocochlear

Question 9

CNIX

Answer 9

glossopharyngeal

Question 10

CNX

Answer 10

vagus

Question 11

CNXI

Answer 11

spinal accessory

Question 12

CNXII

Answer 12

hypoglossal

Question 13

test CN I

Answer 13

sniff, smell

Question 14

test CNII

Answer 14

inspect pupils, acuity, reflexes, visual neglect, visual fields, fundoscopy

Question 15

test CNIII

Answer 15

ptosis, movements, cover test

Question 16

test CNIV

Answer 16

h test, superior oblique

Question 17

test CNV

Answer 17

sensory over v1, v2, v3. motor movement temporals and masseter, jaw jerk, corneal reflex

Question 18

test CNVI

Answer 18

h test, lateral rectus

Question 19

test CNVII

Answer 19

inspect at rest, raise eyebrows, closed eyes, blow out cheeks and smile, pursed lips, inspect ear, ask about hearing change

Question 20

test CNVIII

Answer 20

gross hearing test, Rinnes and Weber, 512Hz tuning fork

Question 21

test CNIX

Answer 21

assess soft palate, uvula, gag reflex (afferent IX, efferent X), cough and swallow.

Question 22

test XI

Answer 22

shrug and push down, head to one side and push to the other

Question 23

test XII

Answer 23

stick tongue out, side to side, tongue against cheek

Question 24

describe the course of CNI

Answer 24

through the cribriform plate into the anterior cranial fossa

Question 25

describe the course of CNII

Answer 25

optic canal into the middle cranial fossa, travels round the pituitary stalk

Question 26

describe the course of CNIII

Answer 26

lateral wall of cavernous sinus and then through the SOF

Question 27

describe the course of CNIV

Answer 27

exits posteriorly and crosses the midline, lateral wall of cavernous sinus

Question 28

describe the course of CNV1

Answer 28

pons through SOF

Question 29

describe the course of CNV2

Answer 29

pons through foramen rotundum

Question 30

describe the course of CNV3

Answer 30

pons through foramen ovale

Question 31

describe the course of CNVI

Answer 31

leaves pontomedullary junction through the cavernous sinus

Question 32

describe the course of CNVII

Answer 32

pontomedullary junction through IAM, passes the parotid gland

Question 33

describe the course of CNVIII

Answer 33

pontomedullary junction through IAM

Question 34

describe the course of CNIX

Answer 34

medulla through the jugular foramen

Question 35

describe the course of CNX

Answer 35

medulla through the jugular foramen within the carotid sheath

Question 36

describe the course of CNXI

Answer 36

arises from the cervical spinal cord, comes through the foramen magnum then through the jugular foramen

Question 37

describe the course of CNXII

Answer 37

leaves via hypoglossal canal, runs lateral to the carotid sheath

Question 38

foramen exit of CNI

Answer 38

cribriform plate

Question 39

foramen exit of CNII

Answer 39

optic canal

Question 40

foramen exit of CNIII

Answer 40

SOF

Question 41

foramen exit of CNIV

Answer 41

SOF

Question 42

foramen exit of CNV1

Answer 42

SOF

Question 43

foramen exit of CNv2

Answer 43

foramen rotundum

Question 44

foramen exit of CNV3

Answer 44

foramen ovale

Question 45

foramen exit of CNVI

Answer 45

SOF

Question 46

foramen exit of CNVII

Answer 46

IAM

Question 47

foramen exit of CNVIII

Answer 47

IAM

Question 48

foramen exit of CNIX

Answer 48

jugular foramen

Question 49

foramen exit of CNX

Answer 49

jugular foramen

Question 50

foramen exit of CNXI

Answer 50

jugular foramen

Question 51

foramen exit of CNXII

Answer 51

hypoglossal canal