Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Summer Physio > travers 3 trigeminal > Flashcards

travers 3 trigeminal Flashcards

1
Q

mandibular division is ____ and ____ the other two are just _____

A

sensory and motor, other two are just sensory

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

CNS 3 parts trigeminal goes to

A

Midbrain- mesencephalic nucleus
pons- motor and principle, main, or chief sensory nucleus
medulla- spinal trigeminal nucleus- oralis, interpolaris, caudalis (medullary dorsal horn).

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

where does trigeminal cross?

A

sensory nucleus and spinal trigeminal nucleus

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

where does trigeminal end in

A

VPM of thalamus, then to prital cortex, oral/face structures closer to later side of brain

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

fastest and biggest fiber

A

A beta

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

adaptation vs. receptor abbreviations, what does 1 or 2 stand for and what does R or S stand for

A 
R= fast adaptation no static response
S= slow adaptation
1= small sharp borders
2= large, obscure borders
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

in the hand what kind of endings are superficial 1 or 2?

A

1

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

in the hand what are the superficial endings

A

meissners corpuscle RA1 and merkel disc SA1

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

meissners corpuscle responsible for what

A

spatial discrimination

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

merkel disc responsible for what

A

pressure

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

in the hand what kind of endings are deep 1 or 2?

A

2?

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

in the hand what are the deep endings

A

Pacinian corpuscle RA2, ruff ini ending SA2

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

Pacinian corpuscle resoponsible for what

A

vibration

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

Ruffini ending responsible for what?

A

Skin stretch

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

which endings are encapsulated?

A

pacinian and meissners corpuscle

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

Factors Influencing Mechanoreceptors

A
  1. size of fiber and degree of myelination
  2. location of receptor superficial vs deep
  3. structure of ending (encapsulated)
  4. transduction (ENaC’s and TRP)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

more sensitivity = higher or lower threshold

A

lower

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

von frey hairs do what?

A

measure touch discrimination. device that measures the tactile sensitivity of the skin

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

most sensitive part of face?

A

lips, numbers correspond to discrimination of two points in mm. lower numbers = more sensitive

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

infraorbital is branch from what

A

maxillary V2

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

infraorbital nerve

A

SA1, SA2, RA1, NO RA2, so no pacinian corpuscles.

22
Q

without no pacinian corpuscles paraoral and facial structures have low what

A

vibrotactile sensitivity, higher the number the more intense vibration sense it takes to feel

23
Q

lingual nerve branch of what big nerve

A

mandibular nerve V3

24
Q

tongue sensitivity _____ as you go towards the back of it

A

decreases

25
Q

what kind of endings predominate in the tongue. what is a specialized example

A

uncapsulated (coiled endings, krause end bulbs….similar to meissiner corpuscle in hand)

26
Q

what makes tongue unique when it comes to endings?

A

tongue and both rapidly and slowly adapting mechanoreceptors despite only having one kind of ending.

27
Q

Kraus end bulbs (like Meissner) characteristics in the tongue

A
  • high density and small receptive fields at tip.
  • both rapidly and slowly adapting responses
  • high sensitivity
28
Q

whats a problem following third molar extractions?

A

trigeminal dysfunction, usually, lip impacted more than tongue. high regeneration opportunity because so far away from cell body.

29
Q

mental nerve goes to what

A

the lower lip and chin

30
Q

what nerves go to 3rd molar

A

inferior alveolar, and lingual

31
Q

innervation of TMJ

A

auriculotemporal nerve

32
Q

mandibular nerve part of trigeminal exits skull through what

A

foramen ovale

33
Q

auriculotemporal is branch of what nerve?

A

mandibular V3

34
Q

aucriculotemporal innervates mainly what part of the TMJ

A

posterior and lateral, some medial

35
Q

accessory sensory innervaion of TMJ and what parts

A

Masseter and posterior deep temporal nerve- both anterior TMJ

36
Q

what kind of nerve endings are in TMJ mechanoreceptors

A

mostly free nerve endings (C)

37
Q

which nerve endings are most prominent in TMJ

A

Ruffini > Golgi tendon organs > pacinian

38
Q

Mechanoreceptors of the Periodontal Ligament nerves

A

inferior alveolar, superior alveolar

39
Q

ant/post. teeth more sensitive?

A

anterior teeth

40
Q

Innervation of Periodontal ligament (endings)

which two are specialized endings in PDL

A
  1. complex ruff ini (special)
  2. simple ruffini (special)
  3. unmylenated free nerve endings
41
Q

where does the nerve that innervates more of the middle of the PDL send sensory information

A

trigeminal ganglia

42
Q

where does the nerve that innervates more of the bottom of the PDL send sensory information

A

mesencephalic nucleus

43
Q

Periodontal Ligament Mechanoreceptor are _____ ______

time

A

rate sensitive (Note fewer action potentials as stimulus is applied more slowly:)

44
Q

Periodontal Mechanoreceptors are also _____ sensitive

A

directional sensitive

45
Q

which directions are PDL most sensitive?

A

labial and distal force

46
Q

denture and implant patients have trouble doing what

A

controlling force but not generating force.

47
Q

what is stereognosis sensitivity?

A

ability to distinguish shape

48
Q

what kind of dental works leaves patients with less stereognosis sensitivity?

A

denture patients.

49
Q

PDL receptor function

A
  1. jaw reflexes
  2. interdental discrimmination
  3. detect forces to teeth
  4. sterognosis
  5. salivation
50
Q

which pathway involves the mesencenphalic nucleus

A

“reflex” pathway

51
Q

which fibers are temperature sensitive?

A

A delta and C

52
Q

does warm or cold have more variation?

A

warm, tongue tip the most sensitive

Summer Physio (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions