Term
| components of telencephalon: |
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Definition
- cerebral cortex
- white matter
- cerebral ventricles
- basal ganglia |
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Term
| The CNS develops from the ___ ___. |
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Definition
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Term
| As neural tube develops, what 3 vesicles initially exist? |
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Definition
- Prosencephalon
- Mesencephalon
- Rhombencephalon |
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Term
| In the 5th week of development what happens? |
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Definition
- prosencephalon divides into telencephalon and lateral ventricle
- mesencephalon does not divide
- rhombencephalon becomes the cerebellum, pons, and medulla (myelencephalon) |
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Term
| The telencephalon was derived as an _____ of the ___. |
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Definition
- evagination
- prosencephalon |
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Term
| Telencephalon gives rise to ____ ____ that become the ___ hemispheres. |
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Definition
- telencephalic vesicles
- cerebrum |
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Term
| The telencephalon maintains contact with the diencephalon, specifically the ____. |
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Definition
|
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Term
| telencephalon grows in what 3 directions? |
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Definition
- rostral
- caudal
- inferior |
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Term
| Telencephalon grows in a " __" shaped pattern as evidenced by the brain ventricles, caudate nucleus, stria terminalis, hippocampal fornix, and location of choroid plexus. |
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Definition
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Term
| the insular lobe is behind the ___ fissure. |
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Definition
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Term
| division b/w occipital and parietal lobes? |
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Definition
| - parietal occipital sulcus |
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Term
| temporal lobe is inferior to what sulcus? |
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Definition
|
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Term
| What 3 gyri make up the limbic lobe? |
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Definition
- cingulate gyrus
- subcolosol gyrus
- parahippocampal gyrus |
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Term
| Primary motor area is what gyrus, what Broadman's area, and what do its axons contribute to? |
|
Definition
- pre-central gyrus
- Broadman's area 4
- axons contribute to corticospinal tract |
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Term
| Primary sensory area is what gyrus and what Broadman's area? |
|
Definition
- post-central gyrus
- Broadmann's area 3, 1, 2 |
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Term
| What lobe and what Broadmans area is they primary visual cortex found? |
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Definition
- occipital lobe
- Broadman's area 17 |
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Term
| what Broadman's areas are in the temporal lobe? |
|
Definition
- Area 41: primary auditory cortex
- auditory association cortex
- Area 22: Wernicke's area- language comprehension |
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Term
| What Broadman's area is the middle frontal gyrus and what is its role? |
|
Definition
- Broadman's area 8
- frontal gaze center |
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Term
| The inferior frontal gyrus: |
|
Definition
-Broca's area aks motor speech area
- Broadman's areas 44 and 45
- located in the dominant cerebral hemisphere (left hemisphere in most people) |
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Term
| what are the three parts of the inferior frontal gyrus? |
|
Definition
- orbital part
- opercular part
- triangular part |
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Term
| A lesion in broadman's area 44, 45 would manifest itself how? |
|
Definition
- Broca's area
- patient can understand speech and think of what they want to say, but cannot say it
- can write words |
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Term
| short association fibers: |
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Definition
| - short communication is established between adjacent gyri within a lobe, or two adjacent lobes |
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Term
|
Definition
| - communicate between 2 or more lobes of the brain |
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Term
| examples of long association fibers: |
|
Definition
- cingulum
- superior longitudinal fasiculus
- arcuate fasiculus |
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|
Term
| commissural fibers connect what? |
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Definition
| - corresponding regions of two hemispheres |
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Term
| examples of commissural fibers? |
|
Definition
- corpus callosum
- anterior commissure
- commissure of the fornix (hippocampal commissure) |
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Term
| Projection fibers allow communication between what? |
|
Definition
communication between cerebral cortex with lower portions of the brain and spinal cord
- internal capsule
- optic radiation |
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Term
| what separates the two side of the diencephalon? |
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Definition
| 3rd ventricle, lays between the two thalami |
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Term
| the third ventricle is in the ___. |
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Definition
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Term
| the cerebral aquaduct is in the ___ and connects the 3rd and 4th ventricles. |
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Definition
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Term
| the fourth ventricle is anterior to the ___, and is _____. |
|
Definition
- cerebellum
- meten-myelencephalic |
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Term
| In the basal ganglia, the corpus striatum is what 3 structures? |
|
Definition
- caudate nucleus
- putamen
- globus pallidus |
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Term
| In the basal ganglia what makes up the Lenticular (lentiform) nucleus? |
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Definition
- putamen
- globus pallidus |
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Term
| in the basal ganglia, what is the neostriatum? |
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Definition
|
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Term
| in the basal ganglia, what is the paleostriatum aka pallidum? |
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Definition
|
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Term
| look at pictures on slides and in netters from this lecture. |
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Definition
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