Cranial Nerve Boundaries

Question 1

Where is primary olfactory cortex, parts of amygdala, and part of entorhinal cortex located?

Answer 1

Anterior portion of parahippocampal gyrus.

Question 2

What is level of nuclei for oculomotor nucleus CN III?

Answer 2

Midbrain at level of superior colliculus

Question 3

What is level of nuclei for EWN?

Answer 3

Anterior portion of periaqueductal gray.

Question 4

What is level of CN IV?

Answer 4

At the midbrain at the level of the inferior colliculus in the anterior portion of the periaqueductal gray.

Question 5

Where do two nerves of CN IV deccusate?

Answer 5

In superior medullary velum

Question 6

Where does CN IV exit brain stem?

Answer 6

Inferior to inferior colliculi

Question 7

Where is CN VI located?

Answer 7

At level of lower pons at level of facial colliculus.

Question 8

Where does CN VI exit brain stem?

Answer 8

Pontomedullary juction between basilar pons and pyramid.

Question 9

What is level of nucelus of spinal tract of trigeminal for CN V?

Answer 9

Midpons at C5

Question 10

What is level of chief sensory nucelus of CN V?

Answer 10

Midpons

Question 11

Where is Mesencephalic nucelus located for CN V?

Answer 11

Midpons-midbrain

Question 12

Where is motor nucelus located CN V?

Answer 12

Midpons

Question 13

Ultimately, where does CN V exit?

Answer 13

Midpons

Question 14

What is level of facial nucleus of CN VII?

Answer 14

Lower pons at the level of facial colliculus.

Question 15

Where is vestibular nuclei located?

Answer 15

Lateral aspect of 4th ventricle

Question 16

Where is cochlear nuclei located?

Answer 16

Acoustic tubercle.

Question 17

Where is nucleus of solitary tract located CN IX?

Answer 17

Medulla

Question 18

Where is nucleus ambiguus located CN IX?

Answer 18

Medulla

Question 19

Where is inferior salivatory nucelus located CN IX?

Answer 19

Pons

Question 20

Preganglionic parasympathetic fibers from CN IX form what?

Answer 20

Tympanic nerve.

Question 21

Where is dorsal motor nucelus of CN X located?

Answer 21

Medulla

Question 22

Where is nucleus ambiguus CN X located?

Answer 22

Medulla

Question 23

Where is nucleus of solitary tract located CN X?

Answer 23

Medulla

Question 24

Where is nucelus of spinal tract of trigeminal located CN X?

Answer 24

Medulla

Question 25

All nuclei of CN X originate where?

Answer 25

Medulla

Question 26

Where does CN XI originate?

Answer 26

Nucelus ambiguus and disperse cell bodies in medulla and cervical segments

Question 27

At what level is hypoglossal nucelus?

Answer 27

Medulla