Cranial nerves

Question 1

CN II

Answer 1

Olfactory

Question 2

CN II

Answer 2

Optic

Question 3

CN III

Answer 3

Oculormotor

Question 4

CN IV

Answer 4

Trochlear

Question 5

CN V

Answer 5

Trigeminal

Question 6

CN VI

Answer 6

Abducens

Question 7

CN VII

Answer 7

Facial

Question 8

CN VIII

Answer 8

Vestibulocochlear

Question 9

CN IX

Answer 9

Glosspharyngeal

Question 10

CN X

Answer 10

Vagus

Question 11

CN XI

Answer 11

Spinal accessory

Question 12

CN XII

Answer 12

Hypoglossal

Question 13

Exit of olfactory

Answer 13

Cribiform plate

Question 14

Cribiform plate is part of which born?

Answer 14

Ethmoid

Question 15

Function of CN I

Answer 15

Sensory: smell

Question 16

Exit of optic

Answer 16

Optic canal

Question 17

Nerves of cerebrum

Answer 17

Olfactory

Optic

Question 18

Function of CN II

Answer 18

Sensory:Vision

Question 19

Exit of oculomotor

Answer 19

Superior orbital fissure

Question 20

Nerves of midbrain

Answer 20

Oculormotor

Trochlear

Question 21

Function of oculormotor:

Answer 21

Motor:
4 extrinsic eye muscles
Lavator palpebae superioris
Pupillary sphincter

Question 22

Exit of trochlear

Answer 22

Superior orbital fissure

Question 23

Function of CN III

Answer 23

Motor:

Superior oblique

Question 24

Exit of trigeminal (1,2,3)

Answer 24

1. Superior orbital fissure
2. Foramen rotundum
3. Foramen ovale

Question 25

Parts of trigeminal nerve:

Answer 25

1. Opthalamic
2. maxillary
3. mandibular

Question 26

V1 function

Answer 26

Sensory:
Scalp
Forehead
Nose

Question 27

V2 function:

Answer 27

Sensory:
Cheeks
Lower eye lid
Nasal mucosa
Upper lip
Upper teeth
Palate

Question 28

V3 function:

Answer 28

Sensory:
Anterior 2/3rd of tongue
Skin over mandible and lower teeth
Muscles of mastication

Question 29

Pons nerves:

Answer 29

Trigeminal
Abducens
Facial
Vestibulocochlear

Question 30

Exit of abducens:

Answer 30

Superior orbital fissure

Question 31

Function CN VI

Answer 31

Motor:

Lateral rectus

Question 32

Exit of facial:

Answer 32

Internal acoustic meastus, stylomatoid foramen

Question 33

Function of CN VII

Answer 33

Sensory: Sensation of outer part of ear
taste from anterior 2/3rd of tongue, hard and soft palate
Muscles of facial expression

Motor:
Lacrimal, submandibular, sublingual glands

Question 34

Exit of vestibulococlear

Answer 34

Internal acoustic meatus

Question 35

Function of CN VIII

Answer 35

Sensory:

hearing and balance

Question 36

Exit of glossopharyngeal

Answer 36

Jugular foramen

Question 37

Function of CN IX:

Answer 37

Sensory:
Sensation and taste from posterior 1/3rd tongue
External and middle ear cavity
Carotid body and sinus

Motor:
Parotid gland
Stylopharygeus

Question 38

Exit of vagus:

Answer 38

Jugular foremen

Question 39

Function of CN X

Answer 39

Sensory:
External ear, larynx, pharynx, throacic and abdominal wall
Taste from epiglottis and region of tongue

Motor:
Smooth muscles of pharynx, larynx and most GI tract
Most muscles of pharynx and larynx

Question 40

Exit of spinal accessory:

Answer 40

Jugular foramen

Question 41

Function of CN XI

Answer 41

Motor:
Trapezius
Sternocleidomastoid

Question 42

Exit of hypoglossal

Answer 42

Hypoglossal canal

Question 43

Function of CN XII

Answer 43

Intrinsic and extrinsic tongue muscles

Question 44

Nerves of the medulla:

Answer 44

Glossopharyngeal
Vagus
Spinal accessory
Hypoglossal