HLSC 1F90 Lecture Notes - Lecture 14: Vasodilation, Hyperplasia, Innate Immune System
10 Apr 2018
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Document Summary
Pathology: the science of disease diagnosis through the examination of organs, tissues, cells and body fluids. We can diagnose a disease by comparing it to a normal organ or tissue. Diagnostic pathology: study of deviation of cell and tissue morphology and biochemistry from normal. General pathology: study of any abnormality manifesting in altered structure and/or function of organs, tissues and/or cells. Clinical pathology: laboratory analysis of body fluid and tissue samples. Metastases (whether or note the cancer has spread)- m. Metaplasia: reversible change from one mature cell type to another. Dysplasia: change from a mature cell to an abnormal cell. Atrophy: decreased individual cell size or cell number. 2 types of cell death (occurs when cells cannot be repaired) Necrosis: the death of most or all of the cells in an organ or tissue due to disease, injury, or failure of the blood supply (4 types)
