Cranial Nerves Flashcards Preview

MUSC Anatomy EXAM 3 > Cranial Nerves > Flashcards

Flashcards in Cranial Nerves Deck (61):
1

Cranial Nerve I

Olfactory Nerve

2

Cranial Nerve II

Optic Nerve

3

Cranial Nerve III

Oculomotor Nerve

4

Cranial Nerve IV

Trochlear Nerve

5

Cranial Nerve V

Trigeminal Nerve

6

Cranial Nerve VI

Abducens Nerve

7

Cranial Nerve VII

Facial Nerve

8

Cranial Nerve VII

Vestibulocochlear Nerve

9

Cranial Nerve IX

Glossopharyngeal Nerve

10

Cranial Nerve X

Vagus Nerve

11

Cranial Nerve XI

Spinal Accessory Nerve

12

Cranial Nerve XII

Hypoglossal Nerve

13

Cranial Nerve I sensory, motor, or both

sensory

14

Cranial Nerve I I sensory, motor, or both

sensory

15

Cranial Nerve III sensory, motor, or both

motor

16

Cranial Nerve IV sensory, motor, or both

motor

17

Cranial Nerve V sensory, motor, or both

both

18

Cranial Nerve VI sensory, motor, or both

motor

19

Cranial Nerve VII sensory, motor, or both

both

20

Cranial Nerve VIII sensory, motor, or both

sensory

21

Cranial Nerve IX sensory, motor, or both

both

22

Cranial Nerve X sensory, motor, or both

both

23

Cranial Nerve XI sensory, motor, or both

motor

24

Cranial Nerve XII sensory, motor, or both

motor

25

4 cranial nerves with sympathetic innervation

oculomotor (CN III)
Facial (CN VII)
Glosspharyngeal (IX)
Vagus (X)

26

olfactory nerve fibers go through which foramen

cribriform plate

27

OLFACTORY NERVE FUNCTION

SMELL/OLFACTION

28

olfactory trigone

some nerve fibers go laterally and others cross hemisphere via lateral commissure.

29

olfactory nerves begin in the ___.

nasal mucosa

30

only cranial nerve that bypasses thalamus

olfactory nerve

31

optic nerve fibers cross at

optic chiasm

32

optic nerve function

vision

33

otic nerve fibers originate in the __.

retina

34

optic nerve exits via what foramen

optic canal

35

what can affect the optic chiasm and cause visual defects?

enlarged pituitary gland

36

oculomotor nerve emerges from what?

interpeduncular fossa

37

oculomotor nerve fibers enter orbit via what foramen

superior orbital fissure

38

upper division of occulomotor nerve innervates

superior rectus, levator palpebrae superioris

39

lower division of occulomotor nerve innervates

inferior oblique, inferior rectus, medial rectus, and parasympathetic innervation (ciliary muscles)

40

function of levator palpebrae superioris

open eyelid

41

function of superior rectus

eye rotates up

42

function of inferior oblique

eye rotates up and out

43

function of inferior rectus

eye rotates down

44

function of medial rectus

eye rotates in

45

function of lateral rectus

eye rotates out- abducens

46

innervation of lateral rectus

abducens nerve

47

innervation of superior oblique

trochlear nerve

48

function of superior oblique

eye rotates down and out

49

cardinal sign for problems with oculomotor nerve

ptosis (drooping eyelid)

50

oculomotor parasympathetic function

constricts pupil (constrictor pupillae muscles) and changes shape of lens (ciliary muscle). results in distance accommodation.

51

origination point for all muscles except inferior oblique

annulus of zin

52

where does inferior oblique originate?

medial surface of orbit

53

which cranial nerves enter via the superior orbital fissure?

CN III, VI, IV
oculomotor
abducens
trochlear

54

only cranial nerve attached to dorsal aspect of brainstem

trochlear nerve

55

trochlear nerve foramen

superior orbital fissure

56

motor function of trochlear nerve

innervates superior oblique, moves eye down and out

57

smalles cranial nerve

trochlear nerve

58

3 divisions of trigeminal nerve

1. ophthalmic (V1)
2. maxillary (V2)
3. mandibular (V3)

59

ophthalmic division of trigeminal nerve foramen

superior orbital fissure

60

maxillary division of trigeminal nerve foramen

foramen rotundum

61

mandibular division of trigeminal nerve foramen

forman ovale