7.12 Thalamus

Question 1

Y shaped fibers that separates thalamic nuclei from medial to lateral

Answer 1

internal medullary lamina

Question 2

medial geniculate, lateral geniculate, VPL, VPM are all ________ nuclei of the thalamus

Answer 2

sensory

Question 3

the medial geniculate nucleus receives input from the __________ and sends output to the _______

Answer 3

inferior colliculus, primary auditory cortex

Question 4

the lateral geniculate nucleus receives input from the __________ and projects to the __________

Answer 4

ratina/optic tract, to visual cortex

Question 5

the VPL nucleus receives input from the ___________ tracts, and projects to ___________

Answer 5

medial lemniscus/spinothalamic; to somatosensory cortex

Question 6

the VPM nucleus receives input from the _____________ tracts, and projcts to the ________ and ______ cortexes

Answer 6

trigeminal lemniscus/trigeminothalamic, somatosensory and taste

Question 7

the two motor thalamic nuclei?

Answer 7

ventral anterior (VA), and verntral lateral (VL)

Question 8

the ventral anterior (VA) nucleus receives input from _____________ and projects to _________

Answer 8

basal ganglia ( substantia nigra, pars reticulata, internal globus pallidus, deep cerebellar nuclei), projects to frontal eye fields and premotor cortex

Question 9

the ventral lateral nucleus (VL) receives input from __________ and projects to ________

Answer 9

deep cerebellar nuclei

motor cortex for movement correction

Question 10

limbic nuclei of thalamus?

Answer 10

anterior nucleus and dorsomedial

Question 11

the anterior nucleus receives info from __________ and projects to the ___________

Answer 11

mammillary body/hippocampal formation, to cingulate gyrus

Question 12

the dorsomedial nucleus receives input from the __________ and projects to ____________

Answer 12

amygdala/olfactory/limbic/basal ganglia

frontal cortex for fast thinking and reward behavior

Question 13

Korsakoff’s syndrome presents with ________ amnesia, due to deficiency of _________ which damages ____________

Answer 13

anterograde + confabulation, B1 thiamine, mammillary bodies and dorsomedial nucleus

Question 14

the pulvinar nucleus receives input from the _________ and projects to __________

Answer 14

superior collicus

parieto-occipital cortex

Question 15

nucleus that integrates visual sensorimotor, visual attention?

Answer 15

pulvinar nucleus

Question 16

lesion of pulvinar nucleus causes?

Answer 16

neglect

Question 17

intralaminar nucleus receives info from _________ and projects to ______, responsible fro maintaining alert consciousness and perception of slow pain

Answer 17

deep cerebellar/basal ganglia

striatum

Question 18

thalamic reticular nucleus projects locally to ________, playing role in ______ synchrony

Answer 18

other thalamic nuclei, EEG synchrony

Question 19

thalamic pain syndrome due to occlusion of __________ artery, lacunar stroke leads to loss of ___________ , and intractable ________

Answer 19

thalamogeniculate
dorsal column and contra ALS
pain

Question 20

consists of frontopontine fibers that go to middle peduncle of cerebellum and frontal eye fields

Answer 20

anterior limb of internal capsule

Question 21

genu of internal capsule consists of ______ fibers

Answer 21

corticobulbar

Question 22

posterior limb of internal capsule consists of ____________ fibers, as part of cerebellar control loop

Answer 22

corticospinal, somatosensory