PSYC 304 Chapter Notes - Chapter 10: Fidgeting, Jerky, Glutamatergic
Document Summary
Best kind of brain tumours: easily removable by surgery. Encapsulated grow within their own membrane. Benign tumours surgically removable with little risk of further growth. Malignant tumours: high degree of reoccurrence, hard to remove. Grow from tumour fragments carried to the brain by the bloodstream from another body part (setting up a franchise) Commonly originate from a breast cancer or a lung cancer. Most common type of malignant brain tumour in adults very deadly (1 year) Sudden onset cerebrovascular disorders that cause brain damage. Penumbra dysfunctional area surrounding the infarct; tissue may recover or die (the area we"re trying to save) Cerebral haemorrhage: occurs when a blood vessel ruptures and blood seeps into surrounding brain tissue, bursting aneurysm is common cause (balloon-like dilations of the arterial wall) Or resulted from exposure to vascular poison. Cerebral ischemia: disruption of the blood supply to some area of the brain, three main causes: thrombosis ( ), embolism ( ), arteriosclerosis.
