PHGY 209 Lecture : PHGY 209 Immunology.doc
17 Mar 2012
School
Department
Course
Professor
Document Summary
Physiology: study of how living organisms work: includes the study of individual molecules, includes the complex processes that depend on the interplay of many widely separated organs in the body. Physiological genomics: integration of molecular biology with physiology. Many disease states are also physiology gone wrong. It is important for pathologists to understand and know physiology to deal with disease. Cell differentiation: the transformation of an unspecialized cell into a specialized cell. Muscle cells: generate the mechanical forces that produce movement: surround may tubes in the body. When contracted, they change the diameter of these tubes: 3 categories, skeletal, cardiac, smooth. Nerve cells: initiate and conduct electrical signals, often over long distances: provide a major way of controlling the activities of other cells. Epithelial cells: responsible for the selective secretion and absorption of ions and organic molecules and for protection: located primarily at, cover the body or individual organs.
