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30 Cards in this Set
- Front
- Back
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Basal Ganglia- what system is it part of? (in general and more specifically)
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the motor system, Extrapyramidal System (biggest part of Extrapyramidal system)
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Is the Basal Ganglia white or gray matter?
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gray matter
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How does the Basal Ganglia function?
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as a side loop (feedback loop) to:
- modify movement |
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T or F- each hemisphere has it's own Basal Ganglia
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T
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Putamen
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- largest, most lateral portion of basal ganglia
- most posterior portion at level of 3rd ventricle |
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Caudate Nucleus- what is it made up of?
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a body, head and tail
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Where is the Caudate Nucleus located?
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on the floor of the lateral ventricle.
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The body of the caudate nucleus curves _________ and continues ____________
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superiorly, dorsolaterally
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The tail of the Caudate Nucleus fuses with what?
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the amygdala
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Globus Pallidus- where is it located in relation to the putamen?
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medial to the putamen- you cannot see it on the lateral view
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External Medullary Lamina
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white matter that separates globus pallidus from putamen
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Internal Medullary Lamina
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white matter within the globus pallidus
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Amygdala
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- all connections in and out
- visible aspects of fear (startle) - trauma sensitizes amygdala- trains it, creates memory - encrypted with terror, happiness, etc |
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The Amygdala is the modulator of what?
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social behavior
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Internal Capsule- what is it, what direction does it go?
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white fibers, corticospinal tracts and spinocortical- ascend and descend
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Internal Capsule- where specifically does it go?
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through space between putamen, globus pallidus, and thalamus- through cellular bridges
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Corona Radiata
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- white matter, fiber bundles
- tiny part of internal capsule |
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Where do the fibers of the Corona Radiata go?
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- between cellular bridges
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What does the Corona Radiata control?
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-voluntary control of head and neck
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What are the major structures of the Basal Ganglia?
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- Putamen
- Caudate Nucleus - Globus Pallidus |
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Is the Amygdala part of the Basal Ganglia?
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no, it is just fused with the tail of the basal ganglia
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What structures are functionally related but not anatomically related to the basal ganglia?
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- red nucleus
- Substantia Nigra - Subthalamic Nucleus |
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What structure is present between the putamen and the caudate nucleus? What is it made of?
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- cellular bridges, made of gray matter
- ascending and descending fibers |
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What tract passes through the cellular bridges?
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Corona Radiata
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______________ is continuous with the Corona Radiata
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The internal capsule
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The amygdala is part of the _________ brain
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visceral
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Putamen + Globus Pallidus= ?
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Lenticular Nucleus
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Caudate + Putamen= ?
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Striatum
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Lenticular Nucleus + Caudate= ?
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Corpus Straitum
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What is another name for the Basal Ganglia?
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the Corpus Striatum
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