PHGY 209 Lecture Notes - Extracellular Fluid, Circadian Rhythm, Pineal Gland
15 Sep 2013
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Physiological genomics: integration of molecular biology with physiology. Pathophysiology: disease states can be viewed as physiology gone wrong . Cells: simplest structural units into which a complex multicellular organism can be divided and still keep the functions characteristic of life. Cell differentiation: process of transforming an unspecialized cell into a specialized cell. To form multicellular structures cells migrate to other cells and form adhesions. Differentiated cells with the same characteristics form tissues (nerve, muscle), tissues together form organs (heart, lung), organs together form organ system (urinary system) 3 type of muscle cells: skeletal, cardiac, smoth (all different shape, and contractile activity) Extracellular matrix- fluid is in the matrix of it, it surrounds cell, consists proteins, minerals. Ex. adipose cells, bone cells, red blood cells, white blood. - basement membrane- (some) cells which rest on an barrier substances from external environment the basement functions: 1. provides support to cellular attachments differentiation)
