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PHBio#9 Hypertension
| Question | Answer |
|---|---|
| angiotensins | a group of peptides activated by renin that elevate blood pressure through a variety of mechanisms including increasing arteriolar smooth muscle tone |
| cerebral | pertaining to the brain |
| cerebrovascular accident (CVA) | a sudden neurologic deficit without seizure lasting longer than one day, commonly called a stroke |
| cerebrovascular disease | any disease of the brain caused by a pathologic process that affects the cerebral blood vessels |
| computerized tomography | a special form of x-ray imaging that produces serial images of the body cut into adjacent planes or sections |
| CT scan | computerized tomography |
| edema | swelling of tissue |
| embolic stroke | a CVA associated with cerebral infarction caused by clot fragments that break off thrombi situated in sites outside the brain such as the left side of the heart, aorta, or carotid arteries |
| essential hypertension | primary hypertension |
| hemorrhagic stroke | a CVA associated with rupture of an artery within the brain |
| hypertension | consistently abnormally high blood pressure |
| hypertrophy | cellular enlargement |
| primary hypertension | idiopathic hypertension |
| renin | a protein produced by the kidneys that converts angiotensin precursors into biologically-active peptides |
| secondary hypertension | hypertension caused by a specific disease or process |
| thrombotic stroke | the most common form of CVA that results when parts of clots, often associated with atherosclerosis, within major blood vessels of the brain break off and suddenly interrupt blood supply to portions of the brain |
| transient ischemic attack (TIA) | a temporary episode of neurologic dysfunction lasting less than one day caused by cerebral ischemia |