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19 Cards in this Set
- Front
- Back
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What is functions are the basal ganglia primarily responsible for? |
Fine motor and involuntary motor |
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What is the basal ganglia? |
A group of interconnected nuclei that receive information mainly from the premotor areas and send processed information back to premotor areas via the thalamus |
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True or false: The brain uses only parallel processing for information |
False, it uses both serial and parallel processing |
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What are the components of the striatum of the basal ganglia ? |
- caudate nucleus - nucleus accumbens -putamen |
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True or false: One of the basal ganglia output area is the external globus pallidus |
True |
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True or false: the substantia nigra is part of the midbrain |
True |
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In the absence of dopamine, the indirect pathway of the basal ganglia has a __________ effect and the direct pathway has a _________ effect |
Excitatory, inhibitory |
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Neurons of the GPe primarily release what neurotransmitter? |
GABA |
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Neurons in the subthalamic nuclei primarily release what neurotransmitter? |
Glutamate |
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GABA tends to have which effect ( inhibitory or excitatory) on other neurons? |
Inhibitory |
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True or fase: The direct pathway of the basal ganglia facilitates movement |
True |
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The indirect pathway of the basal ganglia facilitates...? |
Lack of movement ( inhibition of movement) |
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The thalamus is normally (basally) under __________(inhibition/excitation) |
Inhibition |
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Dopamine acting on D1 receptors causes ________ Dopamine acting on D2 receptors causes ________ |
Stimulation, inhibtion |
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True/ false: D2 receptors are part of the indirect pathway of the basal ganglia |
True |
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Patterns of motor movement are learned through the activity of what neurotransmitter? |
Dopamine |
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Is the thalamus inhibited or excited in Parkinson’s disease? |
Inhibited |
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Is dopamine low or in excess in Parkinson’s disease? |
Low |
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the basal ganglia pathway are an example of what type of processing? |
Parallel |
