Term
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Definition
| represents the largest subdivison of the diencephalon that consists cheifly of an ovoid mass of nuclei in each lateral wall of the 3rd ventricle & serves chiefly to relay impulses especially sensory impulses to and form the cerebral cortex |
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Term
| where is the thalamus situated? |
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Definition
at the level of the 3rd ventricle (located at the rear center of the brain) towards the midline towards the center * corresponds to the diencephalon |
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Term
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Definition
there is a right and a left thalamus and in b/t both we have the 3rd ventricle |
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Term
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Definition
interconnects the right and the left thalamus (in b/t the right and left, we have the 3rd ventricle) |
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Term
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Definition
| thalamus and hypothalamus |
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Term
| what is the thalamus composed of? |
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Definition
a diverisity of nuclei that are projected to the cortex they are named accoring to the position they have |
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Term
| major nuclei of the thalamus |
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Definition
mediadorsal nuclues medial geniculate nuclues lateral geniculate nucleus pulvinar nucleus ventral posterior nucleus ventral anterior and ventral lateral nuclues
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Term
| mediadorsal or dorsalmedia nuclues |
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Definition
| projecting to the prefrontal cortex |
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Term
| medial geniculate nucleus |
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Definition
to the auditory cortex thru the auditory radiation area 41 & partially 42 area 41 is primary auditory cortex |
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Term
| lateral geniculate nuclues |
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Definition
to the visual cortex primary visual area |
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Term
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Definition
to the posterior association cortex rather extensive area that includes occipital and parietal lobes (areas, 18,19 are visual association and also 39, 40 are in parietal lobe) |
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Term
| ventral posterior lateral nuclues |
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Definition
| to the somatosensory cortex |
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Term
| ventral anterior and ventral lateral nuclei |
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Definition
to the motor cortex (projecting mainly to different cortical areas) primary motor area 4 |
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Term
| major function of the thalamus |
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Definition
| projecting/connecting to different cortical areas |
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Term
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Definition
corresponds to the corticospinal tract pathways/connection of axons going down from cortex to the brainstem |
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Term
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Definition
is an area of white matter in the brain that seperates the caudate nucleus & thalamus from the lenticular neucleus (putamen and globus pallidus). it consists of axonal fibres (pathways) that run b/t the cerebral cortex to the pyramids of the medulla (decussation in pyramids) |
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Term
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Definition
| is the wall of the lateal ventricle |
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Term
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Definition
composed of: putamen and globus pallidus |
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Term
| internal capsule goes from... |
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Definition
cerebral cortex to brainstem (medulla oblongata) running b/t the caudate nucleus and the thalamus on one hand, and the putamen and the globus pallidus on the other hand |
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Term
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Definition
| at the level of the brainstem, the pryamids |
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