Cranial Nerves

Question 1

What does the
accessory nerve
do?

Answer 1

Controls muscles of the neck and

overlaps with functions of the vagus

Question 2

What does the

vestibulocochlear nerve do?

Answer 2

Senses sound, rotation and gravity

Question 3

What 3 things does the

vagus nerve do?

Answer 3

(1) Bronchiomotor innervation to most
laryngeal and pharyngeal muscles
(2) Parasympathetic fibres to nearly all
thoracic and abdominal viscera down to
splenic flexure
(3) Taste from epiglottis

Question 4

What 3 things does the

facial nerve do?

Answer 4

(1) Motor innervation to facial
expression muscles
(2) Taste from anterior 2/3 of tongue
(3) Secretomotor innervation to salivary
glands and lacrimal gland

Question 5

What does the
trochlear nerve
do?

Answer 5

Innervates the superior oblique muscle
which depresses, pulls laterally and
intorts the eyeball

Question 6

What does the
trigeminal nerve
do?

Answer 6

face, sinuses, teeth, etcMotor muscles of mastication

Question 7

What does the

optic nerve do?

Answer 7

Transmits visual information to the brain

Question 8

What does the
olfactory nerve
do?

Answer 8

Transmits sense of smell

Question 9

What 3 things does the
glossopharyngeal
nerve do?

Answer 9

(1) Taste from posterior 1/3 of tongue
(2) Secretomotor innervation to parotid
gland
(3) Motor innervation to
stylopharyngeus

Question 10

What does the
oculomotor nerve
do?

Answer 10

Innervates all eye muscles except those

supplied by IV and VI

Question 11

What does the
hypoglossal nerve
do?

Answer 11

Innervates muscles of the tongue