CN III Flashcards

(56 cards)

1
Q

what are the nuclei of the oculomotor nerve

A

oculomotor nucleus

EW-N

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

where are the nuclei of oculomotor nerve located

A

rostral midbrain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the ganglia of the oculomotor n

A

cilirary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is the nucleus of the trochlear n

A

trochlear nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

where is the nucleus of hte trochlear n located

A

caudal mibrain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

a lesion to the MLF segment between the abducen nucleus and the contralateral oculomor nucleus disconnects therese 2 nucleis and results in what

A

inernuclear opthamoplegia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

MLF lesion defict

A

lesion damaging one MLF will result in adduction deficit of the ipsilateral eye when gazing to the contralateral side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

where is the lesion in ono-and one-half lesion

A

lesion in the vicinity of the abducens nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what does the one-and-one-half lesion damger

A

an entire abducen nucleus

ipisilateral MLF

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

result of one-and-one-half lesion

A

eye ipsilateral to lesion has no horizontal movment

eye contralateral to lesion can only abduct with nystagmus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

function components of CN V

A

GSA, GP, SVE,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

GSA of CN V relayhs what

A

touch, pressure, pain, temp from orofacial region

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

CN V gives GP to what

A

muscles of mastication, extraocular muscles, TMJ, periodontal lig

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

sensory or motor of divisions of CN V

A

opthammic - sensory
maxillary - senosry
manbidubar - sensory and motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is the larger root of CN V

A

sensory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is the smaller root of CN V

A

motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

trigemnal ganglian

A

sensory

ccontains cell bodies of pseudounipolar neurons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is the path of ophathalmic and maxillary diisions

A

through the cavernous venous sinus along with CN II, IV, and VI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

where does opthalmic division exit the cranium

A

superior orbital fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

how does maxillary division exit the cranium

A

foramin rotundum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

how does mandibular division exit the cranium

A

foramen ovale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

where do the central processes of CN V go

A

extend toward brainstem and terminate in trigemn nucler complex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

cilary ganglian belongs to waht nerve

24
Q

ciliary ganglion is suspend from

A

opthalmic division

25
what does ciliary ganglion inenrvate
sphicter pupillae and ciliary muscles
26
what nerve does pterygopalatine ganglion belong to
CN VII
27
pterygopalatine ganglion is suspended from
maxillary divsion
28
what does pterygopalatine gangliion innnervate
lacrimal galdn mucus membrane of nasal cavity some galnds of posterior palate
29
what nerve does submandibula rganglion belong to
CN VII
30
what is submandibular ganglion suspended from
mandibular division
31
what does submandibular ganglion innervate
sublingual and submandibular glands
32
what nerve does otic ganglion belong to
CN IX
33
what is otic ganglion suspended fom
mandibular dibisio
34
nwhat does otic ganglion innervatee
parotid glad
35
what are the 4 nuclei of the trigemenial nerve
motor mesencephalic main spinal
36
what is unique about CN V
only CN with pain nuclei
37
funfction of mesecephalic nuclei
genreal proprioception
38
function of main sensory nuclei
fine, detailed, dscrimative touch genreal sensetion some proprioceotion
39
where does spinal nucli extend to
spinal cord C2-3
40
fiers to spinal trigeminal nucleus travel via _____ after performing hairpin loop at mid-pons
spinal trigeminal tract
41
what is the pain path for spinal trigeminal nucleus fibers
ventral trigemnal leminscus
42
is spinal trigeminal nucleus contra or ipsilateral
contralateral
43
what is spinal trigeminal nucles going to
VPM nucleus of thalamus
44
what is the path of exit for primary sensory nucleus
dorsal trigemanl leminsurc
45
is primary sensory nucleus contra or ipsilateral
ipsilator
46
what is primary sensory nucleus going to
VPM of thalamus
47
what nuclei are involved in pain and temperal
spinal trigeminal nucleus
48
what is the path of motor nucleuss
LMN form motor root, merge with mandibular dvision, exit via foramen ovale
49
lesion to spinal V tract between the midpoints to C2 would lead to
loss of pain and temp sensation from ipsilateral side of face
50
lesion to ventral V lemnisuc would lead to
loss of pain and temp sensation | dimunutition of tactile sense from contralateral region
51
function of subnucleus oralis
processes tactile sensation
52
function of subnucleus interpolaris
processes tactile sensation and nocicieption from teeth
53
function of subnucleus caudalis
process nocicipation
54
trigeminal neuralgia
sharp, excrucitating pain that is one sided
55
what causes trigeminal neuralgia
demyelination of CN V as it enters brainstem results in ephaptic transmission of nerve impuslses
56
what a can cause problems for CN V
superior cerebellar a