Brainscape's Knowledge GenomeTM

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


See full index

Neuro Anatomy > Test 2: Trigeminal > Flashcards

Test 2: Trigeminal Flashcards

1
Q

Where are the CB?

A

Trigeminal ganglion: all except proprio

Tigeminal mesencephalic nucleus (ONLY one in CNS): proprioception only

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

What are the 3 tracts and what modalities?

A

Trigeminal leminiscal: touch
Trigeminal thalamic: pain and temp
Dorsal trigeminothalamic: dental pressure

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

Where are the 2CB for the trigeminal leminiscal?

A

Main nucleus- pons

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

Where does the trigeminal leminiscal dessucate?

A

2nd neuron in pons

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

What tract do the 2neurons travel in trigeminal leminiscal?

A

trigeminal leminiscal

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

Where do 2neurons synpase on 3rd in trigem leminiscal?

A

VPM nucleus in thalamus

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

Where do the VPM neurons in trigem leminisc synapse in cortex?

A

Primary somatic sensory cortex (touch and proprioception)

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

Where do 1neurons travel in Trigeminothalamic tract?

A

Down spinal trigeminal tract! like lissaures

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

Where do 1neurons synpase with 2nd/2CB of trigeminothalamic tract?

A

Spinal trigeminal nucleus- medulla

oral, interpolar, or caudal nuclei

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

Where do trigeminothalamic 2neurons decussate?

A

in that level of medulla

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

What tract do 2neurons travel up to cortex in trigeminothalam?

A

Trigeminothalamic tract

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

Where do 2neurons synapse on 3rd in trigeminothalamic?

A

VPM and VMp and medial dorsal nucleus

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

Where do 3neurons go in trigeminothalamic?

A

cinulate gyrus (from med. dors nuc): emotion
SI: from VPM
Insula/S2 (from VPM): affective aspect pain

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

What is the function of trigeminal (CNV)?

A

Carry somatosensory info for:
face, scalp, eyes, sinuses, teeth, eardrum, oral cavity, ant 2/3rd tongue

Control muscle of mastication
Sensory functions for discriminitive touch of face/dental pressure
Jaw proprioception
Face pain/temp
Innvervates dura mater
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the 3 parts of CNV?

A

V1: Opthalamic

  • forehead to top of nose
  • enters superior orbital fissure

V2: Maxillary

  • nose to lips
  • enters Rotundum Foramen

V3: Mandibular

  • ear laterally to chin
  • enters Ovale Foramen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the 3 nucleus groups from midbrain-medulla

A

Trigem mesenceph nuc: proprioception

Trigem main nuc: touch, dental pressures, mechanoreceptors

SpinalTrigem Nuc: oral, interpolar, and caudal

17
Q

What is in the trigeminal mesencephalic nucleus?

A

1CB for proprioception afferent fibers

ONLY CNS ganglia

18
Q

What is in trigeminal main nucleus?

A

2CB for discriminitive touch/dental pressure

mechanoreceptors

19
Q

Where does the spinal trigeminal nucleus occupy?

A

ponse to caudal medulla/rostral C-spine

20
Q

What are the 3 parts of the spinal trigeminal nucleus

A
  1. Oral: 2CB orofacial fine touch
  2. Interpolar: 2CB for orofacial pain, temp, and itch
  3. Caudal: 2CB head and face pain, temp, and itch
    - extension of dorsal horn functionally
21
Q

What is in trigeminal ganglia?

A

ALL 1 CB EXCEPT PROPRIOCEPTION

proprio in trigem mesesnceph nuc

22
Q

What are the BA areas for S1 and S2?

A

BA 1, 2, and 3

23
Q

Where is 1CB for dorsal trigem tract?

A

trigeminal ganglia

-dental pressure

24
Q

Where does dorsal trigem tract 1neuron synpase on 2CB

A

main nucleus

ponse

25
Q

What tract does 2neurons travel in dorsal trigeminal

A

dorsal trigeminal tract

26
Q

Where does 2neurons synapse in dorsal trigeminal tract

Where does 3nerons synapse

A

IPSILATERAL VPM

S1/S2

27
Q

What pathways does oral pressure/proprioception go?

A

trigeminal mesencephalic tract

28
Q

Where is the 1CB of the trigeminal mesencaphalic tract?

A

trigeminal mesencephalic nucleus

-goes from muscle spindle NO CB in ganglia-> nucleus

29
Q

Where does 1neuron synapse on 2CB trigeminal mesencephalic tract

A

trigeminal motor nucleus
AND
main nucleus-> decussates to contralat VPM

30
Q

What is the viscerosensory pathway

A

originates from pressure receptors in pharynx, larynx, esophogause, and chest viscera
-axons in CNIX and X

31
Q

What is the path for the viscerosensory pathways

A

CN IX/X-> solitary tract -> CAUDAL solitary nuclues (medulla)
2CB solitary nucleus -> VPM-> insula
OR 2CB -> parabrachial nucleus (pons)-> hypothal/amygdala

Neuro Anatomy (8 decks)

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