PSYB65H3 Lecture Notes - Lecture 3: Meningioma, Angioma, Meninges
Document Summary
Mid-term: friday, nov 4 from 3 5pm. Things that go wrong with blood supply. A severe interruption of blood supply to the brain. Brain does not stay alive for very long without blood supply and glucose (within minutes) Whenever this happens, death of the brain tissue. When severe causes an infarct = which means dead or dying tissue. This blockage of blood flow can be very fast, immediate (more common) or even slow. However, blockage of blood supply can happen over time especially during old age due to cholesterol, etc. What happens during stroke depends on which artery is blocked and also the larger the artery the more massive the damage is going to be. Entire cerebral artery damage = damage to the frontal lobes. A very slow reduction in the brain supply which causes an accumulation of small amounts of damage rather than stroke which is sudden and quite dramatic.
