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Anatomy Unit 3 Final > ***Neuro- Forebrain > Flashcards

***Neuro- Forebrain Flashcards

1
Q

parts of diencephalon

A

thalamus
hypothalamus
epithalamus
subthalamus

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2
Q

parts of limbic system

A

hippocampus
amygdala
hypothalamus

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3
Q

epithalamus components

A

pineal gland

habenula

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4
Q

habenula location

A

near base of pineal gland in epithalamus (diencephalon)

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5
Q

is habenula a single or paired structure?

A

paired

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6
Q

major input to habenula

A

stria medullaris

limbic input

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7
Q

major output to habenula

A

habenulointerpeduncular tract to midbrain RF

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8
Q

known as gateway to cortex

A

thalamus

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9
Q

t/f ? all sensory pathways relay to thalamus

A

false ; all but olfactory

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10
Q

subdivisions of thalamic nuclei are defined by?

A

IML (internal medullary lamina)

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11
Q

what is largest subdivision of thalamic nuclei?

A

lateral

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12
Q

which thalamic nuclei subdivision sits in split of IML?

A

anterior

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13
Q

anterior thalamic nuclei division houses what

A

anterior nuclei

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14
Q

medial thalamic nuclei division houses what

A

dorsomedial nucleus

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15
Q

lateral thalamic nuclei division is divided into what?

A

dorsal and ventral tiers

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16
Q

dorsal tier of lateral thalamic nuclei division houses what?

A

lateral dorsal
lateral posterior
pulvinar

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17
Q

ventral tier of lateral thalamic nuclei division houses what?

A

ventral anterior / ventral lateral (VA/VL)
ventral posterior lateral (VPL)
medial and lateral geniculates (MGN, LGN)

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18
Q

intralaminar subdivision of thalamic nuclei

A

parafascicular and centromedian

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19
Q

all thalamic nuclei (except reticular) consist of

A

projection neurons

interneurons

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20
Q

projection neurons

A

provide output from thalamus

21
Q

interneurons

A

inhibitory projections

22
Q

2 types of thalamic input

A

specific

regulatory

23
Q

convey thalamic nuclei info directly to cortex

A

specific input

24
Q

regulatory input

A

thalamic nucleus contributes to it before it is passed to cortex

25
Q

only thalamic nucleus that does not project to cortex

A

reticular nucleus

26
Q

reticular nucleus

A

important source of regulatory thalamic inputs

no projections to cortex

27
Q

reticular nucleus input

A

cortex and thalamus

28
Q

reticular nucleus output

A

inhibitory axons to thalamus

29
Q

how does reticular nucleus send collaterals to thalamus?

A

axons must traverse nucleus to enter/leave thalamus and send collaterals

30
Q

intralaminar nuclei

A

receive distinct specific inputs

basal ganglia , limbic structures

31
Q

project to basal ganglia, limbic structures, cortex

A

intralaminar nuclei

32
Q

receive specific information from subcortical source and project to cortex

A

relay nuclei

33
Q

3 types of thalamic nuclei

A

relay
association
intralaminar

34
Q

relay nuclei for sensory system

A

VPL - body

VPM - head/neck

35
Q

relay nuclei for motor system

A

VA-

VL -

36
Q

relay nuclei for limbic system

A

anterior, LD

37
Q

LD nuclei receives input from

A

hippocampus
hypothalamus
pretectum

38
Q

LD projections go to

A

cingulate gyrus

39
Q

main association nuclei

A

DM (medial division)

Pulvinar (dorsal tier of lateral)

40
Q

main areas of association cortex

A

Pre-frontal

Parieto-occipital-temporal-LP-pulvinar comolex

41
Q

what does pre-frontal association cortex do?

A

affect, foresight

42
Q

this thalamic nuclei connect occipital, parietal, temporal

A

pulvinar

43
Q

collects and forms cerebral peduncle

A

internal capsule

44
Q

what fibers pass through IC?

A

thalamocortical and corticothalamic

45
Q

t/f visual, olfactory, and auditory fibers go through IC

A

false ; olfactory fibers do not

46
Q

anterior IC is between

A

lenticular nucleus and caudate

47
Q

posterior IC is between

A

lenticular nucleus and thalamus

48
Q

sublenticular IC location

A

beneath lenticular nucleus

49
Q

anterior nucleus goes to

A

cingulate gyrus

Anatomy Unit 3 Final (12 decks)

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