Cranial Nerves III

Question 1

CN ____ Vestibulocochlear Nerveq

Answer 1

VIII

Question 2

CN VIII nuclei are located where

Answer 2

caudal pons & part of the superior medulla

Question 3

Vestibulocochlear nerve exits out of the ____ along with ___ and ____

Answer 3

brainstem at the pontomedullary junction, CN VI, VII

Question 4

CN VIII contains these fibers for balance and hearing

Answer 4

vestibular for balance

Cochlear for hearing

Question 5

Cochlear and vestibular are what type of fibers?

Answer 5

SA

Question 6

CN VIII enters the _____ and innervates

Answer 6

internal acoustic meatus

inner ear structures

Question 7

CN ___ Glossopharyngeal

Answer 7

IX

Question 8

CN IX leaves the cranial cavity via the

Answer 8

jugular foramen

Question 9

CN IX leaves the brainstem from the

Answer 9

lateral aspect of the upper medulla

Question 10

__ fibers innervate stylopharyngeous muscles for swallowing and speech

Answer 10

GE

Question 11

__ fibers innervate parotid gland secretion

Answer 11

VE

Question 12

__ fibers innervate sensory information from the tonsils, pharynx, middle ear, posterior 1/3 of the tongue, pharyngotympanic tube, and mastoid air cells

Answer 12

GA

Question 13

___ fibers allow for taste sensation from posterior 1/3 of tongue

Answer 13

SA

Question 14

All taste fibers are

Answer 14

SA

Question 15

___ fibers allow for sensation from carotid body and sinus for blood pressure and carbon dioxide monitoring

Answer 15

VA

Question 16

The vagus nerve and the glassopharyngeal exit the cranial cavity through the

Answer 16

jugular foramen

Question 17

CN X is

Answer 17

Vagus nerve

Question 18

CN X leaves the brainstem

Answer 18

lateral to CN IX in the upper medulla

Question 19

CN X exits the cranial cavity via the

Answer 19

jugular foramen

Question 20

___ motor fibers innervate muscles of pharynx, larynx, uvula, soft palate, superior 2/3 of esophagus

Answer 20

GE

Question 21

__ fibers are parasympathetic innervation to smooth muscles of trachea, bronchi, digestive tract, and cardiac muscle of heart

Answer 21

VE

Question 22

__ fibers allow for unconscious sensation from pharynx, larynx, trachea, bronchi, heart, esophagus, stomach and intestines

Answer 22

VA

Question 23

__ fibers allow for taste from epiglottis and palate

Answer 23

SA

Question 24

__ fibers allow for sensation from auricle, EAM and dura of posterior cranial fossa

Answer 24

GA

Question 25

CN XI

Answer 25

spinal accessory

Question 26

CN XI only contains these fibers

Answer 26

GE

Question 27

fibers for motor innervation of the trapezius and the sternocleidomastoid muscles for shoulder and neck movement

Answer 27

General Efferent

Question 28

CN XI originates from

Answer 28

the outside of the skull in the upper spinal cord between C1-C5

Question 29

CN XI enters the cranium through

Answer 29

foramen magnum

Question 30

CN XI exits the cranial cavity through the

Answer 30

jugular foramen

Question 31

CN XII

Answer 31

Hypoglossal nerve

Question 32

CN XII only contains these types of nerves

Answer 32

GE

Question 33

___ fibers are for motor innervations of the tongue

Answer 33

GE

Question 34

Hypoglossal nerve leaves the cranial cavity via

Answer 34

hypoglossal canal in the occipital bone

Question 35

Where does CN XII originate

Answer 35

as several rootlets on the anterior surface of medulla oblongata