CMD 377 Lecture Notes - Lecture 7: Tangled, Headache, Subarachnoid Hemorrhage

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Cmd 377 - lecture 7 - vascular lesions and behavioral pathology. Allows blood vessels to constrict in response to increased blood pressure and relax in response to decreased pressure. Vessels dilate with increased co2 levels in extracellular fluid and constrict with decreased co2. The normal blood pressure in the brain. The difference between arterial, intracranial (csf), and venous pressure is what allows blood to circulate. When there is no pressure difference between the 3 pressures. Distal branches of the 3 cerebral arteries are affected. Smaller branches will dry up before the major branch. Borderline region between 2 different blood supply areas. Because of watershed, there"s a collection of different symptoms. Ischemic strokes caused by sudden vascular insufficiency: Generally caused by occlusion of blood vessels at the site of the buildup. Heart not beating regularly, heart is not efficient. Plaque buildup that breaks away occlusion occurs when it reaches a narrower blood vessel.

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