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anatomy > cranial nerve and lesions > Flashcards

cranial nerve and lesions Flashcards

(80 cards)

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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
the opthalmic division is
sensory
26
the maxillary disvion exts from the
foramen rotundum
27
mthe maxillary division is
sensory
28
the mandibular division exits from
foramen ovale
29
the mandibular division is
mixed
30
sensory supply of 5
face, orbit , sinus anterior 2/3 of the tongyue
31
motor supply of 5
muscles of mastication , mylohypoid, anterior belly of diagastric, tensor tympani
32
6 origin
pons
33
6 termination
lateral rectus muscle
34
6 crnial exit
superiro orbital fissure
35
function of 6b
motor supplies teh lateral rectus
36
lesion of 6
inability to move the eye laterally
37
7 origin
pons
38
7 termination
motot: muscle of teh face and stapedius
39
teh 7 nervenetrs the
internal acoustic meautus with 8
40
cranial exit of 7
stylomastoid foramen
41
7 is what type of nerve
mixed
42
sensory function of 7
supplies anetriro 2/3 of teh tongue the floor of teh mouth and the palate
43
motor function of 7
supplies teh muscles of teh face , auricular muscles, posterior belly of diagastric muscle , stylohyoid muscle , the stapedius
44
parasympathetic of 7 suplies the
sublingual and submandibular glands , nasal and palatine glands and lacrimal glands
45
within what gland does teh facial nerve terminate by giving 5 branches
paortid galnd
46
the 5 terminal branches of 7
buccal, cervical, temporal, zygomatic, marginal mandibular branch
47
teh chorda tympani is a branch of the facial nerve that is in the
facial canal
48
the chorda tympani carries
taste senstaion for the anterior 2/3 of the tongue
49
facial nerve injury results in
loss of taste in teh anterior 2/3 of teh tongue and decreased salivation
50
nerve to stapedius damage
hyperacusis
51
bells palsy is usually
uni lateral
52
bells palsy happens due to the lesion ofwhat
lower motor neuron lesion of the facial nerve
53
causes of bells palsy
unknow, can be a result of aids , tumors , compliocation of diabetes , viral infection , exposure to a cold draft
54
symptoms of bells palsy
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
8 origin
two parts vestibula berve - vestibule ( innr ear) cochlear nerve _ cochlea ( inner ear)
56
termination 8
pons vestibuler part medulla oblongata cochlear nerve
57
cranial exit
internal acoustic meatus with thefacila nerve
58
function of 8
sensory vestibular balance cochlear hearing
59
vestibulocochlear nerve injury
vestibular lesion causes dizziness vertigo and nystagmus cochlear nerve injury deafness and tinnitus
60
9 origin
according to fibers mixed
61
9 termination
sensory - medulla oblonagat
62
cranial exit 9
jugu;lar foramen
63
function 9
sensory : middle ear, audiotoryytube, posteriro 1/3 of the tongue motor; stylopharyngeus muscle
64
parasympathetic division of 9 gives
the parotid gland
65
9 lesion
isolated lesion of 9 is usually rare usually involve teh vagus nerve
66
10 origin
according to fibers ( mixed)
67
10 termination
sesnpry medulla oblongata
68
10 ext
jugular foramen
69
10 motor function supplies
intrinsic muscles of teh larynx constrictor muscles of pharynx soft palate muscles
70
10 sensory supplies
epiglotis , thoracic and abdominal viscera, carotid body , external acoustic meatus , auricular branch of vagus posterior part of meninges
71
10 parasympathetic
muscles of teh brocnhi gi until distal part of transverse colon
72
the accesory nerve is a motor nerve formed by teh union of
spinal and cranial root
73
cranial exit 11
jugular foramen
74
function of 11
cranial root goes with teh vegus spinal root supplies teh trapezius and the sternocleidomastoid
75
lesion to 11
paralysis of the trapezius : unable to shrug shoukders droopy shoulders paralysis of sternocleidomastoid patient is unable to turn their head against teh resistance
76
12 origin
medulla oblongata
77
12 termination
intrinsic and extrinsic muscle sof teh tongue
78
12 exit
hypoglossal canal
79
12 function
motor supplies teh intrinsic and extrinsic muscles of thetongue except for thr palto glossus
80
hypoglossal nerve injury
lower motor neauron lesion tongue will deviate towards teh paralyzed side

anatomy (36 decks)

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