Cranial Nerves III Flashcards Preview

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Flashcards in Cranial Nerves III Deck (35)
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1
Q

CN ____ Vestibulocochlear Nerveq

A

VIII

2
Q

CN VIII nuclei are located where

A

caudal pons & part of the superior medulla

3
Q

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

A

brainstem at the pontomedullary junction, CN VI, VII

4
Q

CN VIII contains these fibers for balance and hearing

A

vestibular for balance

Cochlear for hearing

5
Q

Cochlear and vestibular are what type of fibers?

A

SA

6
Q

CN VIII enters the _____ and innervates

A

internal acoustic meatus

inner ear structures

7
Q

CN ___ Glossopharyngeal

A

IX

8
Q

CN IX leaves the cranial cavity via the

A

jugular foramen

9
Q

CN IX leaves the brainstem from the

A

lateral aspect of the upper medulla

10
Q

__ fibers innervate stylopharyngeous muscles for swallowing and speech

A

GE

11
Q

__ fibers innervate parotid gland secretion

A

VE

12
Q

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

A

GA

13
Q

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

A

SA

14
Q

All taste fibers are

A

SA

15
Q

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

A

VA

16
Q

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

A

jugular foramen

17
Q

CN X is

A

Vagus nerve

18
Q

CN X leaves the brainstem

A

lateral to CN IX in the upper medulla

19
Q

CN X exits the cranial cavity via the

A

jugular foramen

20
Q

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

A

GE

21
Q

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

A

VE

22
Q

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

A

VA

23
Q

__ fibers allow for taste from epiglottis and palate

A

SA

24
Q

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

A

GA

25
Q

CN XI

A

spinal accessory

26
Q

CN XI only contains these fibers

A

GE

27
Q

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

A

General Efferent

28
Q

CN XI originates from

A

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

29
Q

CN XI enters the cranium through

A

foramen magnum

30
Q

CN XI exits the cranial cavity through the

A

jugular foramen

31
Q

CN XII

A

Hypoglossal nerve

32
Q

CN XII only contains these types of nerves

A

GE

33
Q

___ fibers are for motor innervations of the tongue

A

GE

34
Q

Hypoglossal nerve leaves the cranial cavity via

A

hypoglossal canal in the occipital bone

35
Q

Where does CN XII originate

A

as several rootlets on the anterior surface of medulla oblongata