PSYC 370 Lecture Notes - Lecture 4: Meningitis, Pus, Antibody
24 Feb 2017
School
Department
Course
Professor
Document Summary
Most of our understanding of brain function comes from case studies of people that experienced brain damage. 6 causes of brain damage: brain tumor. Tumor (neoplasm)- a group of cells growing independently of the rest of the body. 2 classes: encapsulating (ie. meningiomas)- grow within its own membrane. Push surrounding brain tissue out of the way risk for spreading. Infiltrating (ie. gliomas)- grow diffusely throughout surrounding tissue. Malignant- aggressive, spread quickly, difficult to remove: metastatic- originate in one organ and spread to another, cerebrovascular disorders. Stroke- any sudden onset of a cerebrovascular disorder that causes brain damage. It is the major cause of neural dysfunction and leading cause of adult disability: cause aphasia, amnesia, paralysis, or coma. Infarct- the dead or dying tissue produced by the stroke: penumbra- tissue surrounding infarct, may or may not die. 2 types: cerebral hemorrhage- blood vessel ruptures causing bleeding in brain. Caused by bursting aneurisms- balloonlike dilation formed by the weakening of arteries walls.
