lec 7

Question 1

write the arterial supply of thalamus

Answer 1

PCA , post.comminicating artery , ant.choroidal artery

Question 2

hemibalismus indicate lesion of ?

Answer 2

subthalamus

Question 3

function of post. commisure of epithalamus

Answer 3

connect 2 sup.caliculus , 2 oculumotor nuclei , pretectal nuclei with edinger westphal nuclei .

Question 4

what are the parts of epithalamus ?

Answer 4

1- posterior commisure
2-pineal gland
3-habinular nucleus
4-stria medullaris thalami

Question 5

which of the following is the spicific thalamic nucleui

Answer 5

ventral thalamic nuclei

Question 6

anterior thalamic nuclei input , output and function

Answer 6

input:mammilary body throgh mammilothalamic tract
output : through anterior thalamic radiation to cingulate gyrus
function: part of limbic system ( emotion behavior , memory )

Question 7

medial thalamic nucleus (input , output, function) المجمع

Answer 7

input : from other thalamic nuclei , amygdaloid nucleus , globus pallidus
output: prefrontal area (personality center ), through sup. thalamic radiation
function : part of limbic system (emotional behavior , memory )

Question 8

lateral thalamic nuclei (dorsal group ) consist of ?

Answer 8

1- DP 2-DL 3-pulvinar

Question 9

lateral thalamic nuclei (dorsal group ) input output function

Answer 9

input :from sensory thalamic nuclei 
output:association cortical areas in T,P,O by (sup.thalamic radiation in all except pulvinar by posteior thalamic radiation )
function :"connectors" they connect spicific nuclei with their association cortical area.

Question 10

lateral thalamic nuclei (ventral) VA , VL

Answer 10

input: conrealteral dentate nucleus + ipsilateral globus l pallidus
output ; through superior thalamic nuclei to primary motor and premotor area
function :link cerebrum , cerebellum , basal ganglia to control motor activity

Question 11

lateral thalamic nuclei VPL .

Answer 11

input : spinla and medial laminiscus (carrying sensation from the oppisite side of the body )
output: postcentral gyrus ( genral somatic sensory srea ) u.2/3 by superior thalamic radiation
function : sensation from the oppisite side of the body

Question 12

lateral thalamic nuclei VPM .

Answer 12

input :trimgemenal laminiscus ( carrying sensation from the oppisite side of the face )

output: postcentral gyrus 1/3 ( genral somatic sensory srea ) by superior thalamic radiation
function: sensation from the oppisite side of the face

Question 13

metathalamus MGB

Answer 13

input :infelrior caliculi of the midbrain
output :primary auditory area (41,42) by inferior thalamic radiation
function : auditory relay nucleus , if lost => loss hearing from the bilateral side of the body mainly oppidite

Question 14

LGB supplied by

Answer 14

ant.choroidal artery

Question 15

tha main arterial supply for thalamus

Answer 15

PCA