The Thalamus

Question 1

thin layer of white matter dividing the gray matter of the thalamus

Answer 1

internal medullary lamina

Question 2

the thalamus is subdivided into __ main parts by the internal medullary lamina

Answer 2

3 parts – anterior part, lateral and medial part

Question 3

the thalamus is the largest part of the diencephalon an serves as the main relay station for the main sensory tracts except for the

Answer 3

olfactory pathway

Question 4

thalamic functions

Answer 4

controls level of cortical excitability

influences motivational and emotional responses

Question 5

final relay station of all sensory impulses

before it reaches the primary sensory cortex

Answer 5

thalamus

Question 6

integrates the motor and sensory input to the cortex

Answer 6

thalamus

Question 7

medial geniculate body

Answer 7

part of the auditory pathway; receives auditory infro from both ear but predominantly from opposite ear

Question 8

lateral geniculate body

Answer 8

part of visual pathway; receives info from opposite field of vision

Question 9

the nuclei in the thalamus

Answer 9

anterior: anterior nuclei
lateral anterior: VA. VL, VPM, VPL
dorsal anterior: LD
lateral posterior: pulvinar, LP
dorsal posterior: Medial and lateral geniculate
medial: dorsomedial nucleus

Question 10

nuclei associated with performance of voluntary nuclei and form part of basal nuclei

Answer 10

ventroanterior (VA) and ventrolateral (VL)

Question 11

intralaminar nuclei

Answer 11

influence levels of consciousness and alertness in an individual (sensorium and arousal);

Question 12

closely connected with the activities of the reticular system

Answer 12

intralaminar nuclei

Question 13

what is special about reticular nucleus

Answer 13

only thalamic nuclei that does not send projections to the cortex and the ONLy thalamic nuclei with inhibitory output to other nuclei