Basal Ganglia Lecture Flashcards

1
Q

Forebrain is derived from

A

prosencephalon

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2
Q

What is the function of the commissural fibers

A

communication between hemispheres

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3
Q

What are the three things that are made of commissural fibers

A

corpus callosum
anterior commissure
posterior commissure

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4
Q

the corpus callosum, anterior commissure, and posterior commissure are all _______ matter

A

white

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5
Q

Anterior commissure is responsible for

A

olfaction

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6
Q

Posterior commissure is known for

A

pupillary light reflex

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7
Q

Association fibers are _____ hemisphere

A

within a

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8
Q

U fibers are _______ range

A

short range

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9
Q

Superior longitudinal fasciculus, arcuate fasciculus and cingulum are _____ range

A

long

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10
Q

________ fibers are longitudinal communication of cortex with brainstem and body

A

projection

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11
Q

Fan like spread into/out of cortex is called

A

corona radiata

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12
Q

Condensed fiber bundle threading through BG and thalamus

A

internal capsule

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13
Q

What is one of the largest parts of deep grey matter in the forebrain

A

thalamus

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14
Q

the thalamus is derived from

A

diencephalon

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15
Q

Thalamus: relay system for _____ sensory input to the brain

A

most

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16
Q

T/F the thalamus is also hub between hippocampus, amygdala, and other cortical regions

A

T

17
Q

Does the thalamus also relay motor input from cerebellum and basal ganglia

A

yes

18
Q

What are the large subcortical nuclei of the basal ganglia responsible for

A

motor control
motivated behaviors
some aspects of emotion

19
Q

Input from different cortical regions are ________ in basal ganglia

A

kept seperate

20
Q

Basal ganglia loops project back out via ______ to same cortical region origin

A

thalamus

21
Q

What are the four major types of inputs/loops of basal ganglia

A

emotion–limbic cortex
cognitive—PFC
sensory
motor

22
Q

What are the two type of circuits through the basal ganglia

A

direct route
indirect route

23
Q

What are two disorders of the basal ganglia

A

parkinson’s disease
huntington’s disease

24
Q

excitatory connections use

A

glutamate

25
Q

Inhibitory connections use

A

gaba

26
Q
A