PSYC 370 Chapter Notes -Oligodendrocyte, Model Organism, Mptp

• School: Queen's University
• Department: Psychology
• Course: PSYC 370
• Professor: Janet L Menard

Document Summary

Brain damage & neuroplasticity (can the brain recover from damage?) Tumor: mass of cells that grows independently of the rest of the body. Also called a neoplasm, or a cancer. Meningiomas: tumors that grow between the meninges (membranes that cover the cns). Account for 20% of human brain tumors. All are encapsulated tumors (see next) Encapsulated tumors: grown within their own membrane. Easy to find on a ct scan. Only influence function of the brain by exerting force. Most tumors are not encapsulated but infiltrating. Infiltrating tumors: grow diffusely throughout surrounding tissue. Difficult to destroy tissue often remains after they are removed. Many begin in the lungs. Stokes: sudden- onset cardiovascular disorders that cause brain damage. Infarct: dead or dying tissue caused by a stroke. (10 : 1) Penumbra: dysfunctional area surrounding an infarct; this tissue may be saved or could die. Caused by cerebral hemorrhage. Caused by cerebral ischemia.