KINS 1223 Chapter Notes - Chapter 3: Lipid Bilayer, Transmembrane Protein, Cell Membrane
4 Apr 2016
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Chapter 3: cellular form and funcion (pages 77-107) Cell: the simplest structural and funcional unit of life; all living things are composed of cells and cell products. Cell theory: all physiological processes of the body are based on cellular acivity and that the calls of all species exhibit remarkable biochemical unity. Squamous- thin, lat, scaly shape, bulge where nucleus is; line the esophagus and form surface layer of skin. Cuboidal- squarish-looking in frontal issue secions and about equal in height and width; liver cells. Columnar- taller than wide; inner lining cells of stomach and intesines. Polygonal- irregular angular shapes with 4-5 or more sides. Spheroidal to ovoid- round to oval; egg cells and white blood cells. Fusiform- spindle-shaped, thick middle, tapered ends; smooth muscle cells. Fibrous- long, slender, threadlike; skeletal muscle cells and axons of nerve cells. Basic components of a cell: cytoplasm, plasma (cell) membrane, nucleus.
