Cranial Nerves

Question 1

Where does the Oculomotor nerve (III) leave the brainstem?

Answer 1

The midbrain, interpeduncular fossa (ventral)

Question 2

Where does the trochlear nerve (IV) leave the brainstem?

Answer 2

Midbrain, interpeduncular fossa (DORSAL)

Question 3

Where does the Abducens nerve (VI) leave the brainstem?

Answer 3

Pons, lower border of pons - pontocerebellar junction.

Question 4

Where does the oculomotor nerve (III) pierce the dura mater?

Answer 4

At the superior orbital fissure

Question 5

Where does the abducens nerve (VI) pierce the dura mater?

Answer 5

Durellos canal

Question 6

Where does the oculomotor nerve (III) leave the skull?

Answer 6

Superior orbital fissure

Question 7

Where does the trochelar nerve (IV) leave the skull?

Answer 7

Superior orbital fissure

Question 8

Where does the abducens nerve (VI) leave the skull?

Answer 8

Superior orbital fisure

Question 9

Where does the trigeminal nerve (V) leave the brainstem?

Answer 9

It leaves the lateral part of the pons, the pontopeduncular junction.

Question 10

Where does the trigeminal nerve pierce the dura mater?

Answer 10

Meckel’s cave

Question 11

Which parts does the trigeminal nerve (V) divide into?

Answer 11

Ophthalmic division (V1)
Maxillary division (V2)
Mandibular division (V3)

Question 12

Where does the ophthalmic division (V1) leave the skull?

Answer 12

Superior orbital fissure

Question 13

Where does the maxillary division (V2) leave the skull?

Answer 13

It enters the pterygopalatine fossa through the forarmen rotondum

Question 14

Where does the mandibular division (V3) leave the skull?

Answer 14

It passes though the forarmen ovale to the inferior surface of the base of the skull into the infraperitoneal fossa.

Question 15

Where does the facial nerve (VII) leave the brainstem?

Answer 15

It leaves the medulla oblongata at the cerebellopontine angle.

Question 16

Where does the vestibulocochlear nerve (VIII) leave the brainstem?

Answer 16

It leaves the medulla oblongata at the cerebellopontine angle.

Question 17

Where does the facial nerve (VII) pierce the dura mater?

Answer 17

Internal aucustic meatus

Question 18

Where does the vestibulocochlear nerve pierce the dura mater?

Answer 18

Internal aucustic meatus

Question 19

Where does the facial nerve (VII) leave the skull?

Answer 19

Stylomastoid forarmen

Question 20

Where does the vestibulocochlear nerve (VIII) leave the skull?

Answer 20

It does not leave the skull (?)

Question 21

Where does the glossopharyngeal nerve (IX) leave the brainstem?

Answer 21

It emerges dorsal to the olive in the lateral parolivery sulcus.

Question 22

Where does the vagus nerve (X) leave the brainstem?

Answer 22

It emerges dorsal to the olive, in the lateral parolivery sulcus

Question 23

Where does the accessory nerve (XI) leave the brainstem?

Answer 23

?

Question 24

Where does the glossopharyngeal nerve (IX) pierce the dura mater?

Answer 24

Jugular forarmen

Question 25

Where does the vagus nerve (X) pierce the dura mater?

Answer 25

Jugular forarmen

Question 26

Where does the accessory nerve (XI) pierce the dura mater?

Answer 26

Jugular forarmen

Question 27

Where does the glossopharyngeal nerve (IX) leave the skull?

Answer 27

Jugular forarmen

Question 28

Where does the vagus nerve (X) leave the skull?

Answer 28

Jugular forarmen

Question 29

Where does the accessory nerve (XI) leave the skull?

Answer 29

Jugular forarmen

Question 30

Where does the hypoglossal nerve (XII) leave the brainstem?

Answer 30

From the medulla oblongata in the medial parolivery sulcus

Question 31

Which nerve(s) leaves through the cribiform plate?

Answer 31

Olfactory nerve

Question 32

Which nerve(s) leaves through the optic canal?

Answer 32

Optic nerve

Question 33

Which nerve(s) leaves through the superior orbital fissure?

Answer 33

Oculomotor nerve (III), trochlear nerve (IV), abducens nerve (VI) and ophthalmic nerve (V1)

Question 34

Which nerve(s) leaves through the forarmen rotundum?

Answer 34

Maxillary nerve (V2)

Question 35

Which nerve(s) leaves through the forarmen ovale?

Answer 35

Mandibular nerve (V3)

Question 36

Which nerve(s) leaves through the internal aucustic meatus?

Answer 36

Facial nerve (VII) and vestibulocochlear nerve (VIII)

Question 37

Which nerve(s) leaves through the jugular forarmen?

Answer 37

Glossopharyngeal nerve (IX), vagus nerve (X) and accessory nerve (XI)

Question 38

Which nerve(s) leaves through the hypoglossal canal?

Answer 38

Hypoglossal nerve (XII)