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13 Cards in this Set
- Front
- Back
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Split Brain patients |
Those who have corpus callosum severed or surgically removed (epilepsy patients) |
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Wada test |
Used before major elective surgery you add Amobarbital to your left common carotid artery which will freeze the left part of your brain. If language is lateralized to the left hemisphere then language will be disrupted for several mins. |
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Macroscopic Anatomical Asymmetries Sylvian fissure |
RH shows a larger upward curl when compared to the LH |
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Macroscopic Anatomical Asymmetries Planum Temporale |
Larger in the left hemisphere then the right. Near Wernicke's area and used to understand written and spoken word. Same size in dyslexic kids but reversed size in dyslexic adults. |
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Macroscopic Anatomical Asymmetries Functional Asymmetry |
96% of right handed people show LH language dominance. 65% larger planum temporal in LH. |
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Microscopic Anatomical Asymmetries Dendritic Branching |
The LH has greater higher order ___ ___ than that of their homologs in the RH. RH has more low order ___ ___. |
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Microscopic Anatomical Asymmetries Cell Size Difference |
LH have larger ones and are spaced further apart allowing more room for connectivity than in the RH. |
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Three parts to the CC |
Anterior portion called the Genu Middle portion called the Body Posterior portion called the Splenium |
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Anterior commissures |
Small band of fibers connecting the two hemispheres. Primarily connects the two temporal lobes including the amygadalae |
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Posterior commissures |
Also carries some interhemispheric fibers. Located above the cerebral aqueduct at the junction of the 3rd ventircle. |
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Corpus Callosum Homotopic Fibers |
Connect corresponding areas in both hemispheres via the CC |
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Corpus Callosum Heterotopic Fibers |
Connect two different areas in either hemisphere via the CC |
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Corpus Callosum Ipsilateral Fibers |
Connections that start and finish in the same hemisphere does NOT go through CC |
