4 Cranial nerves

Question 1

Cranial nerve I:

Function:

Answer 1

Olfactory.

Smell.

Question 2

Cranial nerve II:

Function:

Answer 2

Optic.

Vision.

Question 3

Cranial nerve III:

Function:

Answer 3

Oculomotor.

4/6 extra ocular muscles, autonomics.

Question 4

Cranial nerve IV:

Function:

Answer 4

Trochlear.

Superior oblique.

Question 5

Cranial nerve VI:

Function:

Answer 5

Abducens.

Lateral rectus.

Question 6

Cranial nerve V:

Function:

Answer 6

Trigeminal.

Sensation to face and motor to muscles of mastication.

Question 7

Cranial nerve VII:

Function:

Answer 7

Facial.

Muscles of facial expression, taste to anterior 2/3rds tongue, parasymph to all glands except parotid.

Question 8

Cranial nerve VIII:

Function:

Answer 8

Vestibulocohclear.

Hearing and balance.

Question 9

Cranial nerve IX:

Function:

Answer 9

Glossopharyngeal.

Swallowing, parasymph to parotid, taste to post 1/3rd tongue, cutaneous ear, carotid body sensation.

Question 10

Cranial nerve X:

Function:

Answer 10

Vagus.

Muscles of pharynx and larynx.. Parasymph to thoracic + GI tract. taste from epiglottis and palate.

Question 11

Cranial nerve XI:

Function:

Answer 11

Accessory.

Motor to sternocleidomastoid and trapezius.

Question 12

Cranial nerve XII:

Function:

Answer 12

Hypoglossal.

Motor to muscles of tongue.

Question 13

Which nerves carry autonomic fibres?

Answer 13

Oculomotor.
Facial.
Glossopharyngeal.
Vagus.