Diencephalon- Block 3

Question 1

what is the function of the pineal gland

Answer 1

secrete melatonin during periods of darkness

Question 2

the lateral portions of the habenula function for __

Answer 2

negative reward with input from the amygdala

Question 3

the laterodorsal portions of the habenula function for __

Answer 3

positive (expected) reward

Question 4

the habenula receives input from __

Answer 4

stria medullaris thalami

Question 5

what is the function of the subthalamus

Answer 5

coordinates basal ganglia, reticular formation, thalamus, and cerebral cortex motor function

Question 6

pineal gland tumors are associated with what 3 conditions

Answer 6

Parinaud syndrome
oculomotor or trochlear palsy
noncommunicating hydrocephalus

Question 7

a lesion to the subthalamus leads to __

Answer 7

contralateral hemiballismus

Question 8

central thalamic pain syndrome affects what structure of the thalamus

Answer 8

VPL

Question 9

what is the effect of central thalamic pain syndrome

Answer 9

hypersensitivity to pain

Question 10

Korsakoff syndrome affects what structure of the thalamus

Answer 10

dorsomedial nucleus first then anterior nucleus

Question 11

what are the effects of Korsakoff syndrome

Answer 11

anterograde and retrograde memory loss
confabulations
perseveration
social and behavioral neglect
emotional instability

Question 12

what is the function of the internal medullary lamina of the thalamus

Answer 12

receive input from paleospinothalamic tract, senses, and ascending reticular activating system

Question 13

what nuclei is part of the medial group of the thalamus

Answer 13

dorsomedial nucleus

Question 14

what is the function of the dorsomedial nucleus

Answer 14

abstract thinking
multitasking
organization

Question 15

what nuclei is included in the anterior group of the thalamus

Answer 15

anterior nucleus

Question 16

what is the function of the anterior nucleus of the thalamus

Answer 16

learning
memory
drive

Question 17

the lateral group of thalamic nuclei are divided into ventral and dorsal. the dorsal includes __

Answer 17

Pulvinar

Question 18

the lateral group of thalamic nuclei are divided into ventral and dorsal. the ventral includes what nuclei

Answer 18

ventral anterior
ventral lateral
ventral posterior medial
ventral posterior lateral

Question 19

what is the function of the Pulvinar located in the dorsal aspect of the lateral group of the the thalamus

Answer 19

behavioral orientation
response to sensory cues

Question 20

what is the function of the ventral anterior and ventral lateral nuclei of the thalamus

Answer 20

motor planning, initiation, and coordination

Question 21

what is the function of the ventral posterior medial and ventral posterior lateral nuclei of the thalamus

Answer 21

sensory touch, temperature, pain, and pressure

Question 22

what nuclei make up the centromedian group of the thalamus

Answer 22

internal medullary (intralaminal) group

Question 23

what is the function of the internal medullary (intralaminar) group of nuclei of the thalamus

Answer 23

alertness
mood
temporal orientation

Question 24

the centromedial internal medullary (intralaminar) group of nuclei of the thalamus are associated with what 2 conditions

Answer 24

supranuclear palsy
Parkinson’s

Question 25

what is the function of the lateral geniculate body

Answer 25

vision

Question 26

what is the function of the medial geniculate body

Answer 26

auditory

Question 27

what is the function of the reticular nuclei

Answer 27

communicate to cerebral cortex during sleep-wake cycle