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Brandon’s Anatomy Flash Cards > Ascending pathways flashcards > Flashcards

Ascending pathways flashcards

1
Q

other name for lateral spinothalamic tract?

A

neospinothalamic tract

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2
Q

What does lateral spinothalamic/neospinothalamic tract do?

A

epicritic pain and temp
(nociceptors, thermoceptors)

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3
Q

What type of fibers associated wtih lateral spinothalamic/neospinothalamic tract?

A

A delta fibers

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4
Q

Where does lateral spinothalamic tract / neospinothalamic tract end?

A

post central gyrus

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5
Q

2nd name for anterior spinothalamic tract?

A

paleospinothalamic tract

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6
Q

what does ant. spinothalamic tract / paleospinothalamic tract do?

A

crude touch (pressure receptorts) and protopathic pain (nociceptors)

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7
Q

What types of fibers associated with ant. spinothalamic tract/paleospinothalamic tract?

A

C fibers

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8
Q

What makes ant. spinothalmaic tract different from lateral spino thalamic tract?

A

Most fibers decussate in ant. white commisure

fibers from ant. spinothalamic tract: some go to reticular formation (spinoreticular fibers) and then diffuse thalamic nuclei where as some fibers go to periaquaductal gray (spinotectal fibers)

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9
Q

Which pathways pass through the VPL?

A

lateral spinothalamic tract
ant spinothalamic tract

arachispinothalamic tract

dorsal white column pathway

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10
Q

Where does ant. spinothalamic tract end?

A

post central gyrus
gyrus cynguli
insular lobe

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11
Q

Pathways that pass through VPM?

A

Trigeminothalamic tract

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12
Q

Function of trigeminothalamic tract?

A

epicritic pain and temp of the face

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13
Q

What kinds of fibers are associated with trigeminothalamic tract?

A

A delta and C fibers

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14
Q

Where does trigeminothalamic tract end?

A

post central gyrus

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15
Q

2nd name for arachispinothalamic tract?

A

propriospinal tract

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16
Q

what does arachispinothalamic tract / propriospinal tract do?

A

protopathic pain and crude touch

Same as ant. spinothalamic tract

17
Q

What makes arachispinothalamic tract different from lateral and anterior spinthalamic tracts?

A

some fibers cross and some don’t in propriospinal tract

Then it goes to VPL, but also to reticular formation, periaqeuductal gray, hypothalamus

18
Q

Where does arachispinothalamic tract end?

A

post central gyrus

19
Q

Where does arachispinothalamic tract deucussate?

A

propriospinal tract

20
Q

Does trigeminothalamic tract deucssate?

A

no

21
Q

where to lateral and anterior spinothalamic tracts decussate?

A

ant. white commissure

22
Q

What kinds of fibers associated with dorsal white column pathway?

A

A beta fibers

23
Q

Where is fassiculus cuneatus?

A

T4-T8

24
Q

where does dorsal white column pathway ducussate?

A

internal arccuate fibers

25
Q

What receptors start both post and ant spinocerebellar tracts?

A

peripheral tactile and proprioceptive fibers

26
Q

what kind of fibers are associated with both ant and post cerebellar pathways and dorsal white column pathway?

A

A beta fibers

27
Q

Does post spinocerebellar tract cross?

A

no

28
Q

does ant spinocerebellar tract cross?

A

yes, twice in ant spinocerebellar tract and in sup cerebellar peduncle

29
Q

what cerebellar peduncle does post spinocerebellar pathway pass through?

A

inf cerebellar peduncle

30
Q

what cerebellar peduncle does ant spinocerebellar pathway pass through?

A

sup cerebellar peduncle

31
Q

where does both spinocerebellar pathways end?

A

cerebellar cortex

32
Q

Where does cerebello thalamic cortico pathway cross?

A

sup cerebellar peducnle

33
Q

where does cortico-ponto cerebellar pathway cross?

A

pontine nuclei

34
Q

which two pathways are basically inverse of eachother?

A

cerebellothalamiccortico pathway and
cortiocopontocerebellar pathway

Brandon’s Anatomy Flash Cards (20 decks)

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