01:830:310 Lecture Notes - Lecture 9: Internal Carotid Artery, Diffusion Mri, Angiography
Document Summary
Some pathogen extraneous to you that infects you. Once infected, you have the inflammation response. Once in nervous system, remains dormant: upon activation leaves cells and induces immune response, recurrent, can progress to encephalitis in some people. Environmental chemicals toxins or heavy metals: mercury and lead, example women in middle ages wanted to look pale, so powdered their faces with lead (bad idea, both damage the bbb (blood brain barrier) Alcohol or drugs of abuse: alcohol, stimulants (cocaine, meth) Can chemically damage and alter your brain major damage. Look at brain at tissue level microscopic level. See the different structures (liver is different from heart) specifically at the brain. Tissues look very different depending on where you go very important!! Mostly structural levels (some show functional levels) Determination of the structure and morphology of tissue. For the brain only done postmortem, in some rare cases it is done biopsy.