Cranial Nerves

Question 1

What CN controls the muscles of mastication?

Answer 1

CN V3

Question 2

What CN supplies taste to the anterior 2/3rds

Answer 2

CN VII

Question 3

What CN supplies taste and general sensation to the posterior 1/3rd of the tongue

Answer 3

CN IX

Question 4

What CN supplies general sensation to the anterior 2/3rds of the tonuge?

Answer 4

CN V3

Question 5

What CN supplies facial expression?

Answer 5

CN VII

Question 6

What CN supplies the submandibular and sublingual salivary glands?

Answer 6

CN VII

Question 7

What CN supplies sensation to the superior half of your oral cavity?

Answer 7

CN V2

Question 8

What CN supplies sensation to the inferior half of your oral cavity?

Answer 8

CN V3

Question 9

What CN carries the motor part of the gag reflex?

Answer 9

CN IX and CN X

Question 10

What CN carries the sensory part of the gag reflex?

Answer 10

CN IX

Question 11

If an anaesthetic is sprayed in the oral cavity, what CNs will be numbed?

Answer 11

CN V2, CN V3, CN VII and CN IX

Question 12

What CN controls the parotid salivary gland?

Answer 12

CN IX

Question 13

What CN controls the muscles of the tongue (except for the palatoglossus)

Answer 13

CN XII

Question 14

What CN innervates the pharynx?

Answer 14

CN X

Question 15

What CN stimulate the longitudinal muscles of the pharynx?

Answer 15

CN IX and CN X

Question 16

What CN closes the lips?

Answer 16

CN VII

Question 17

Supplies facial expression?

Answer 17

CN VII

Question 18

Supplies Sublingual salivary gland?

Answer 18

CN VII

Question 19

Supplies submandibular gland?

Answer 19

CN VII

Question 20

Supplies anterior nasal cavity?

Answer 20

V1

Question 21

Supplies posterior nasal cavity?

Answer 21

V2

Question 22

Middle ear, eustation tube and internal surface of tympanic membrane

Answer 22

CN IX

Question 23

External (superior) surface of tympanic membrane and superior EAM

Answer 23

V3

Question 24

Nasopharynx, oropharynx, tonsils

Answer 24

CN IX

Question 25

External inferior surface of tympanic membrane

Answer 25

CN X

Question 26

Helix and outer auricle of ear

Answer 26

C2, C3

Question 27

Small dots of nerve in EAM

Answer 27

CN VII

Question 28

Laryngopharynx and oesophagus

Answer 28

CN X

Question 29

Associated with chorda tympani

Answer 29

CN VII which then joins V3

Question 30

Innervation of stapedius

Answer 30

CN VII

Question 31

Muscles of the soft palate

Answer 31

CN X

except tensor veli palatini

Question 32

Tensor veli palatini

Answer 32

V3

Question 33

Tongue pointing away unilaterally

Answer 33

damage to CN XII

points towards injury

Question 34

Uvula damage points away unilaterally

Answer 34

damge to CN X and V3

points away from injury

Question 35

Larynx and vocal cords

Answer 35

CN X

Question 36

Superior oblique

Answer 36

CN IV

Question 37

Lateral rectus

Answer 37

CN VI

Question 38

All other eye muscles

Answer 38

CN III