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anatomy > cranial nerve and lesions > Flashcards

cranial nerve and lesions Flashcards

1
Q

olfactory nerve orirgin

A

olfactory receptor nerve cell in the nasal cavity

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2
Q

olfactory termination

A

olfactory bulb_ olfactory tract

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3
Q

cranial exit of olfactory nerve

A

cribriform plate of ethmoid bone

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4
Q

funcvtion of the olfactory nerve

A

sensory

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5
Q

what is ther partial or full lossof the sens e of smell

A

anosmia / hyposmia

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6
Q

what can cause tghe loss of sense of smell

A

cold, allergies, diseases

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7
Q

optic nerve origin

A

retina of the eye

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8
Q

optic nerve termination

A

optic nerve , optic chiasm, optic pathway, thalamus

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9
Q

cranial exit of optic nerve

A

optic canal

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10
Q

damage to the optic nerve resukts in

A

impaired vision, blindness

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11
Q

oculomotor origin

A

midbrain

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12
Q

occulomootor termnation

A

motor - extrinsic muscles of the eye
parasympathetic division - gives the intinsic muscles of the eye

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13
Q

cranial exit of occulomotr

A

superior orbital fissure

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14
Q

function of occulomotor nerve

A

supplies the extrinsic muscles of teh eye
except for SO4 LR6
parasympathetic divison ; the spinchter pupillae muscle of the iris and cilliry muscle

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15
Q

occulomotor lesion results in

A

all the muscles are paralyzed except for teh SO4 LR6
ptosis : inactivation f levator palpible
mydriasis : decreased tone of the constrictor of the pupil
down and out

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16
Q

trochlear nerve origin

A

mid brain

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17
Q

4 nerve termination

A

superior oblique muscle

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18
Q

4 exit

A

superiro orbital fissure

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19
Q

function of 4

A

supply the superiro orbital fissure
that moves teh eye downward and laterally

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20
Q

lesiuon to 4 nerve

A

inability to move the eye down andi nward

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21
Q

5 origin

A

pons

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22
Q

the largest cranial nerve is the

A

trigeminal

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23
Q

divsions of the trigemenal nerve

A

opthalmic , mandibular , maxillary

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24
Q

the opthalmic division of the trigeminal nerve exits from

A

superior orbital fissure

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25
Q

the opthalmic division is

A

sensory

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26
Q

the maxillary disvion exts from the

A

foramen rotundum

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27
Q

mthe maxillary division is

A

sensory

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28
Q

the mandibular division exits from

A

foramen ovale

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29
Q

the mandibular division is

A

mixed

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30
Q

sensory supply of 5

A

face, orbit , sinus anterior 2/3 of the tongyue

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31
Q

motor supply of 5

A

muscles of mastication , mylohypoid, anterior belly of diagastric, tensor tympani

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32
Q

6 origin

A

pons

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33
Q

6 termination

A

lateral rectus muscle

34
Q

6 crnial exit

A

superiro orbital fissure

35
Q

function of 6b

A

motor supplies teh lateral rectus

36
Q

lesion of 6

A

inability to move the eye laterally

37
Q

7 origin

A

pons

38
Q

7 termination

A

motot: muscle of teh face and stapedius

39
Q

teh 7 nervenetrs the

A

internal acoustic meautus with 8

40
Q

cranial exit of 7

A

stylomastoid foramen

41
Q

7 is what type of nerve

A

mixed

42
Q

sensory function of 7

A

supplies anetriro 2/3 of teh tongue
the floor of teh mouth and the palate

43
Q

motor function of 7

A

supplies teh muscles of teh face , auricular muscles, posterior belly of diagastric muscle , stylohyoid muscle , the stapedius

44
Q

parasympathetic of 7 suplies the

A

sublingual and submandibular glands , nasal and palatine glands and lacrimal glands

45
Q

within what gland does teh facial nerve terminate by giving 5 branches

A

paortid galnd

46
Q

the 5 terminal branches of 7

A

buccal, cervical, temporal, zygomatic, marginal mandibular branch

47
Q

teh chorda tympani is a branch of the facial nerve that is in the

A

facial canal

48
Q

the chorda tympani carries

A

taste senstaion for the anterior 2/3 of the tongue

49
Q

facial nerve injury results in

A

loss of taste in teh anterior 2/3 of teh tongue and decreased salivation

50
Q

nerve to stapedius damage

A

hyperacusis

51
Q

bells palsy is usually

A

uni lateral

52
Q

bells palsy happens due to the lesion ofwhat

A

lower motor neuron lesion of the facial nerve

53
Q

causes of bells palsy

A

unknow, can be a result of aids , tumors , compliocation of diabetes , viral infection , exposure to a cold draft

54
Q

symptoms of bells palsy

A

dropping pof teh corner of teh mouth, inability to close teh eye ( dropped eye lid) , unable to puff the cheek,unabile to wtinkle the brow

55
Q

8 origin

A

two parts
vestibula berve - vestibule ( innr ear)
cochlear nerve _ cochlea ( inner ear)

56
Q

termination 8

A

pons vestibuler part
medulla oblongata cochlear nerve

57
Q

cranial exit

A

internal acoustic meatus with thefacila nerve

58
Q

function of 8

A

sensory
vestibular balance cochlear hearing

59
Q

vestibulocochlear nerve injury

A

vestibular lesion causes dizziness vertigo and nystagmus
cochlear nerve injury deafness and tinnitus

60
Q

9 origin

A

according to fibers mixed

61
Q

9 termination

A

sensory - medulla oblonagat

62
Q

cranial exit 9

A

jugu;lar foramen

63
Q

function 9

A

sensory : middle ear, audiotoryytube, posteriro 1/3 of the tongue
motor; stylopharyngeus muscle

64
Q

parasympathetic division of 9 gives

A

the parotid gland

65
Q

9 lesion

A

isolated lesion of 9 is usually rare usually involve teh vagus nerve

66
Q

10 origin

A

according to fibers ( mixed)

67
Q

10 termination

A

sesnpry medulla oblongata

68
Q

10 ext

A

jugular foramen

69
Q

10 motor function supplies

A

intrinsic muscles of teh larynx
constrictor muscles of pharynx
soft palate muscles

70
Q

10 sensory supplies

A

epiglotis , thoracic and abdominal viscera, carotid body , external acoustic meatus , auricular branch of vagus posterior part of meninges

71
Q

10 parasympathetic

A

muscles of teh brocnhi gi until distal part of transverse colon

72
Q

the accesory nerve is a motor nerve formed by teh union of

A

spinal and cranial root

73
Q

cranial exit 11

A

jugular foramen

74
Q

function of 11

A

cranial root goes with teh vegus
spinal root supplies teh trapezius and the sternocleidomastoid

75
Q

lesion to 11

A

paralysis of the trapezius : unable to shrug shoukders
droopy shoulders

paralysis of sternocleidomastoid patient is unable to turn their head against teh resistance

76
Q

12 origin

A

medulla oblongata

77
Q

12 termination

A

intrinsic and extrinsic muscle sof teh tongue

78
Q

12 exit

A

hypoglossal canal

79
Q

12 function

A

motor supplies teh intrinsic and extrinsic muscles of thetongue except for thr palto glossus

80
Q

hypoglossal nerve injury

A

lower motor neauron lesion
tongue will deviate towards teh paralyzed side

anatomy (36 decks)

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