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41 Cards in this Set
- Front
- Back
Diencephalon |
complex structure interposed b/w the brainstem and cerebral hemispheres |
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Cerebrum |
diencephalon |
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Diencephalon is divided into two symmetrical parts by _ |
IIIrd ventricle |
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Diencephalon |
Epithalamus |
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Epithalamus |
Pineal body |
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Pineal body |
Epithalamus |
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Habenular nuclei |
epithalamus |
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Stria Medullaris |
epithalamus |
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Largest component of Diencephalon |
Thalamus |
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Thalamus |
"gateway to cerebral cortex" |
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Hypothalamus |
mammillary bodies |
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Subthalamus |
internal capsule |
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MGN and LGN |
part of Diencephalon |
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Basic functions of Diencephalon |
autonomic and behavioral responses to emotional changes |
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Basic functions of Diencephalon |
receives sensory and motor input and relays to cerebral cortex |
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Basic functions of Diencephalon |
controls ANS and several endocrine glands |
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Basic functions of Diencephalon |
includes subthalamic nucleus which serves motor function |
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Corpus Striatum |
large nuclear masses located lateral to diencephalon |
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neostriatum |
putamen + caudate |
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paleostriatum |
globus pallidus |
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archistriatum |
amygdaloid complex |
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Basal ganglia |
corpus striatum, subthalamic nucleus, substantia nigra, amygdala |
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hypokinetic disorders |
signif impairment in movement initiation (akinesia) and reduction in mvmnt amplitude and velocity (bradykinesia) |
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Dysfunction of basal ganglia |
spectrum of mvment abnormalities |
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hyperkinetic disorders |
excessive involuntary mvments called dyskinesias |
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Internal Capsule |
ascend and descend fibers that connect thalamus, cortex, bs, sc |
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Internal capsule |
thalamocortical fibers (corticopetal) |
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thalamocortical fibers |
asc fibers from thalamus to cortex |
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corticofugal fibers |
desc fibers from cortex to thalamus, bs, and sc |
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IC |
V-shaped |
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IC |
lies b/w lentiform nucleus and caudate |
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IC |
corticonuclear (corticobulbar) fibers |
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IC |
lies b/w lentiform nucleus and thalamus |
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Retrolenticular fibers |
emerge from IC and form |
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Sublenticular fibers |
emerge from IC and form |
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IC |
lateral striate branches of middle cerebral artery to both anterior and posterior limbs |
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IC |
internal carotid artery |
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IC |
lateral striate branches of MCA |
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IC |
anterior choroidal artery |
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Effects of IC Infarction |
small lesion = same as large lesion to cerebral cortex |
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Effects of IC infarct |
UMN |