Thalamus

Question 0

Role of thalamus

Answer 0

Sensory and motor pathways
Subcortical motor circuits
Vision and audition
Regulates flow of information to cerebral cortex
Autonomic control via hypothal
Conciousness/sleep

Question 1

Blood supply of thalamus

Answer 1

Posterior cerebral artery

From above

Question 2

VPL

Answer 2

Afferents medial lemniscus, spino thal

Efferents primary sensory cortex

Question 3

VPM

Answer 3

Afferents trigeminothalamic tracts

Efferents primary sensory cortex

Question 4

VA

Answer 4

Afferents globus pallidus

To premotor cortex

Question 5

VL

Answer 5

Af from gp and dentato rubro thalamic tract

Ef primary motor and premotor

Question 6

Mgb

Answer 6

Inferior colliculus via inferior brachium

Ef primary audiotry cortex

Question 7

Lgb

Answer 7

Af optic tract

Ef primary visual cortex

Question 8

Anterior non soecific thalamic nuc

Answer 8

Af. Mamillothalamic

Ef. Cingulate gyrus

Question 9

Dorsomedial non spec thal nuc

Answer 9

Af. Pfc, thal, hypothal, olfact amygdala

Ef. Hypothal, frontal eye field

Question 10

Dorsolateral teir of non spec thal nuc

Answer 10

Af from vpl, vpm, vl nuc

Reciprocal connections with many cortical areas

Question 11

Intralamina

Answer 11

Centromedian receives afferents from rf sleep and pain pathways

Question 12

Thalamic reticular nucleus role

Answer 12

Regulates outflow from thal contains inhibitory neurones to thal 3-4 cells thick

Question 13

Role of pulvinar

Answer 13

Posterior 25% of thal
Quick movements
Connect visual and motor
Corelates vision and body movemnts

Question 14

Blood supply of internal capsule anterior limb

Answer 14

Middle cerebral artery

Question 15

Blood supply to posterior limb internal capsule

Answer 15

Anterior choroidal artery from middle cerebral artery