Set 5 CN's Flashcards Preview

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Flashcards in Set 5 CN's Deck (55):
1

What is cranial nerve I?

olfactory

2

Where does CN I exit?

cribriform plate?

3

What is the function of CN I?

sensory- smell

4

What is cranial nerve II?

optic

5

Where does CN II exit?

optic canal

6

What is the function of CN II?

sensory- vision

7

What is cranial nerve III?

Occulomotor

8

Where does CN III exit?

superior orbital fissure

9

What is the function of CN III?

motor- eye muscles EXCEPT lateral rectus and superior oblique

10

What is the smallest CN?

trochlear

11

Where does CN III synapse?

Edinger Westphal nucleus

12

What is cranial nerve IV?

Trochlear

13

What is the function of CN IV?

motor- superior oblique

14

Where does CN IV exit?

superior orbital fissure

15

What is cranial nerve V?

Trigeminal

16

What are the three branches of CN V?

Opthalmic, maxillary, and mandibular

17

Where does CN Va exit?

superior orbital fissure

18

Where does CN Vb exit?

foramen rotundum

19

Where does CN Vc exit?

foramen ovale

20

What is the function of CN V?

sensory- face and tongue motor- muscles of mastication

21

What pathology is associated with CN V?

tic douloreux aka trigeminal neuralgia

22

What is the largest CN?

CN V

23

Where does CN V synapse?

Gasserian, Semilunar, or Trigeminal ganglion

24

What is cranial nerve VI?

Abducens

25

Where does CN VI exit?

superior orbital fissure

26

What is the function of CN VI?

motor- lateral rectus

27

What is cranial nerve VII?

Facial

28

Where does CN VII travel and exit?

internal auditory meatus exits through stylomastoid foramen

29

What is the function of CN VII?

sensory- sweet, salty, sour ANT 2/3 of tongue motor- facial expression

30

Where does CN VII synapse?

superior salivatory nucleus

31

What pathology is associated with CN VII?

Bell's Palsy

32

What is cranial nerve VIII?

vestibulocochlear

33

Where does CN VIII exit?

internal auditory meatus

34

What is the function of CN VIII?

sensory- balance and hearing

35

Where does CN VIII synapse?

vestibular ganglion of scarpa

36

What is cranial nerve IX?

Glossopharyngeal

37

Where does CN IX exit?

jugular foramen

38

What is the function of CN IX?

sensory- taste POST 1/3 of tongue motor- secretion of parotid gland

39

Where does CN IX synapse?

nucleus ambiguous (inferior salvatory)

40

What is cranial nerve X?

vagus

41

Where does CN X exit?

jugular foramen

42

What is the function of CN X?

sensory- bitter taste epiglottis, external auditory meatus motor- pharynx and larynx

43

Where does CN X synapse?

parasympathetic dorsal motor nucleus

44

What is cranial nerve XI?

spinal accessory

45

Where does CN XI exit?

jugular foramen

46

What is the function of CN XI?

motor- SCM and Trapezius

47

Where does CN XI synapse?

nucleus ambiguous

48

What is cranial nerve XII?

hypoglossal

49

Where does CN XII exit?

hypoglossal canal

50

What is the function of CN XII?

motor- tongue

51

Where does CN XII synapse?

hypoglossal nucleus

52

What CNs are parasympathetic?

III, IV, IX, and X

53

Where does the middle meningeal artery exit?

foramen spinosum

54

Where does the internal carotid artery exit?

foramen lacerum

55

What does damage to the Pterion cause?

damage to the middle meningeal artery and possible death