Advanced Pathophysiology Week 7 Quiz- Version 3

Question 1 2 / 2 pts Uncal herniation occurs when a cerebellar tonsil shifts through the foramen magnum. the cingulate gyrus shifts under the falx cerebri. the diencephalon shifts from the middle fossa straight downward through the tentorial notch into the posterior fossa. Correct! 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. Question 2 2 / 2 pts What are the areas of the brain that mediate several cognitive functions, including vigilance, reasoning, and executive functions? Parietal Occipital Limbic Correct! Prefrontal It is the prefrontal lobe that mediates several cognitive functions, including vigilance, reasoning, and executive functions. Question 3 2 / 2 pts The body compensates to a rise in intracranial pressure by first displacing Correct! cerebrospinal fluid (CSF). arterial blood. cerebral cells. This study source was downloaded by 100000780339733 from CourseHero.com on 05-14-2022 22:43:26 GMT -05:00 https://www.coursehero.com/file/26620315/Advanced-Pathophysiology-Week-7-Quiz-Version-3docx/ venous blood. A rise in intracranial pressure necessitates an equal reduction in volume of the other contents. The most readily displaced content of the cranial vault is CSF. Question 4 2 / 2 pts Subarachnoid hemorrhage causes communicating hydrocephalus by obstructing the cerebrospinal fluid flow into the subarachnoid space. Correct! the absorption of cerebrospinal fluid by the arachnoid villi. the cerebrospinal fluid flow between the ventricles. blood flow to the arachnoid villi. Hydrocephalus from impaired absorption outside the ventricles is called communicating (extraventricular) hydrocephalus.