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Antibodies > Trigeminal > Flashcards

Trigeminal Flashcards

1
Q

Merkel and Ruffini are

A

slow adapting

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2
Q

Pancinian and Meisner are

A

rapidly adapting

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3
Q

What are our warming receptors in face

A

C fibers

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4
Q

What are the cooling receptors in face

A

A-delta

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5
Q

Where are the cell bodies of face located (touch/proprio)

A

trigeminal ganglion

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6
Q

What are the peripheral processes of the TG (touch/proprio)?

A

CN V = trigeminal nerve

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7
Q

Where does the trigeminal N head from the trigeminal ganglion (touch/proprio)

A

enter brainsteom at ventrolateral pons

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8
Q

Where are the second order neurons for Trigem system located (touch/proprio)

A

Main sensory nucleus or Chief sensory nucleus V

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9
Q

What is the ascending pathway from second order neurons of Trigem after leaves Cheif sensory nucleus (touch/proprio)

A

Medial lemniscus or Trigeminal Lemniscus

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10
Q

Destination of the ascending pathway for trigeminal system (touch/proprio)

A

VPM

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11
Q

Primary afferent cell body location for pain/temp of face

A

Trigem ganglion

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12
Q

Central processes of Trigem system for pain and temp

A

Spinal tract

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13
Q

Second order neurons for face (pain/temp)

A

Spinal nucleus (caudal nucleus)

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14
Q

Ascending pathway for pain/temp on face

A

Trigeminothalmanic tract

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15
Q

Destination of the ascending pathwaay for pain/temp afferents of face

A

VPM and others

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16
Q

Both pain and fine touch from face end up in

A

VPM

17
Q

Crude touch from face takes a different path by:

A

entering pons and descending down spinothalmic tract w/out synapsing

18
Q

Where do crude touch for face synapse?

A

on the spinal nuclues after descending from pons and CROSSES OVER

19
Q

Where do crude touch fibers from face cross over?

A

in caudal medulla (other fine touch do so in pons)

20
Q

What is special about oral cavity sensory info

A

follows same general pathway by entering Trigem ganglion–> principle sensory nucleus of V in pons BUT some cross over and acsend up Dorsal trigeminal tract while others ascend up dorsal trigem on same side

21
Q

Oral cavity representation is:

A

bilateral

22
Q

Somatotopy of VPM

A

Tongue = medial
oral cavity
Face it lateral

23
Q

Fine touch uses this for 2nd order neurons:

Pain uses this path for 2nd order neurons:

A

Trigeminal lemniscus

Trigeminothalmic

24
Q

Fine touch crosses contralateral at:

Pain crosses contralateral at:

A

level of pons

level of caudal medulla after descending

25
Q

Touch Second order neurons are located :

Pain second order neurons located:

A

Chief sensory nucleus in pons

Spinal nuclues in caudal medulla

26
Q

Both touch and pain uses this for housing first order neuron cell bodies

A

trigeminal ganglion

27
Q

Fine touch uses this for pirmary afferents (central processes)
Pain uses this for primary afferents (central Processes)

A

entering trigeminal fibers

spinal tract

28
Q

Recurrent episodes for seconds to minutes
a. Neuralgia = pain along a course of nerve
b. Recurrent espisode of excruciating pain lasting seconds/mins
c. Occurs in any or many: ear/eye/lips/nose/scalp/forehead/teeth/jaw
d. regions of V2/V3 territory
e. Provoked by chewing, shaving, brushing teeth, touching trigger pts
Unknown cause but it is NEUROPATHIC pain

A

Trigeminal neuralgia or ‘tic douloureux’

29
Q

TX for tic douloreux

A

TX: carbamazepin sometimes antidepressents

30
Q

Tx for TMJ

A

NSAIDS or mouthguard

31
Q

Fibers carrying fine touch from body and face enter;

A

medial lemniscus
trigeminal lemniscus
AT different levels

32
Q

Body fibers for medial lemniscus enter at level of

fine touch

A

caudal medulla

33
Q

Face fibres for trigeminal lemniscus enter at level of

fine touch

A

pons

34
Q

When you think leminscus think:

A

fine touch

35
Q

Above this level medial lemniscus and trigeminial lemniscus run together

A

above pons

36
Q

Fibers carrying pain/temp from body enter as

from face enter as

A 
anterolateral tracts (body)
trigeminothalmic tracts (face)
37
Q

Body fibers for pain enter where

A

all along spinal cord

38
Q

face pain fibers enter in

A

from cervical cord to caudal medulla (where spinal nucleus V located)

39
Q

At what level to anterolateral and trigeminothalmic tracts run together

A

rostral level

Antibodies (1 decks)

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