NR 507 WEEK 7 QUIZ 3 – QUESTION AND ANSWERS

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Advanced Pathophysiology Week 7 Quiz- Version 3 Uncal herniation occurs when a cerebellar tonsil shifts through the foramen magnum. the cingulate gyrus shifts under the falx cerebri. the diencepha ... lon shifts from the middle fossa straight downward through the tentorial notch into the posterior fossa. the hippocampal gyrus shifts from the middle fossa through the tentorial notch into the posterior fossa. Uncal herniation (hippocampal herniation, lateral mass herniation) occurs when the uncus or hippocampal gyrus (or both) shifts from the middle fossa through the tentorial notch into the posterior fossa, compressing the ipsilateral third cranial nerve impairing parasympathetic functioncarried in the periphery of the nerve, then the contralateral third cranial nerve, and finally the mesencephalon, inducing coma. What are the areas of the brain that mediate several cognitive functions, including vigilance, reasoning, and executive functions? Parietal Occipital Limbic Prefrontal It is the prefrontal lobe that mediates several cognitive functions, including vigilance [Show More]

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