Skull openings for the Cranial Nerves 1.2

Question 1

Cranial nerve 1

Answer 1

Olfactory nerve:

Cribriform plate of ethmoid bone

Question 2

Cranial nerve 2

Answer 2

Optic nerve:

Optic canal

Question 3

Cranial nerve 3

Answer 3

Oculomotor nerve:

Superior orbital fissure

Question 4

Cranial nerve 4

Answer 4

Trochlear nerve:

Superior orbital fissure

Question 5

Cranial nerve 5(1)

Answer 5

Trigeminal nerve (Ophthalmic):
Superior orbital fissure

Question 6

Cranial nerve 5(2)

Answer 6

Trigeminal nerve (maxillary):
Foramen rotundum

Question 7

Cranial nerve 5(3)

Answer 7

Trigeminal nerve (mandibular):
Foramen ovale

Question 8

Cranial nerve 6

Answer 8

Abducens nerve:

Superior orbital fissure

Question 9

Cranial nerve 7

Answer 9

Facial nerve:

Internal acoustic meatus (after exiting, it enters skull once more)

Question 10

Cranial nerve 8

Answer 10

Vestibulocochlear nerve:

Internal acoustic meatus

Question 11

Cranial nerve 9

Answer 11

Glossopharyngeal nerve:

Jugular foramen

Question 12

Cranial nerve 10

Answer 12

Vagus nerve:

Jugular foramen

Question 13

Cranial nerve 11

Answer 13

Accessory nerve:

Jugular foramen

Question 14

Cranial nerve 12

Answer 14

Hypoglossal nerve:

Hypoglossal canal