Science Jeff Lee
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Science Jeff Lee

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    Science Jeff Lee Science Jeff Lee Presentation Transcript

      • Created by cells with similar shapes and functions
      • Creates “the Fabric” the Body
      • Composed of Epithelial, Muscle, Nervous, Connective
      Epithelial Connective Muscle Nervous Credits
      • Almost entirely composed of cells
      • Can be divided into Simple and Stratified Epithelium
      • Classified by the number of cell layers and the cell shape
      Home Simple Epithelium Stratified Epithelium
      • Consists of single-celled layers
      • Main functions consist of absorption and filtration
      • Has three primary shapes
      Home Simple Squamous Simple Cuboidal Simple Columnar Psuedostratified Columnar Courtesy of akay
      • Contain a sparse cytoplasm
      • They consist of single flattened cells
      • Specialize in diffusion and filtration
      • Divided into two sections
      Home Simple Cuboidal Simple Columnar Psuedostratified Columnar Mesothelium Endothelium Courtesy of pbchua
      • Consists of a cube-like shape
      • Contain one large spherical central nuclei
      • Primary functions include secretion and absorption
      Home Simple Squamous Simple Columnar Psuedostratified Columnar
      • Creates a slick, friction reducing lining
      • Found in hollow organs of cardiovascular system
      • Allows the exchanges between blood streams and tissue cells
      Home Mesothelium Courtesy of Partlynch
      • Found in the serous membrane
      • Lines the ventral cavity
      • Covers organs
      Home Endothelium
      • Contains closely packed cells
      • Located in areas of the digestive tract
      • Associated mostly with absorption and secretion
      Home Simple Squamous Simple Cuboidal Psuedostratified Columnar Courtesy of Christi’s Photos
      • Looks as if many cell layers are present
      • May or may not contain cilia and goblet cells
      • Location depends on characteristics
      Home Simple Squamous Simple Cuboidal Simple Columnar Courtesy of Ra5my
      • Have two more cell layers
      • Main concerns include protection
      • Identified by apical layer
      Home Stratified Squamous Stratified Cuboidal Stratified Columnar Transitional
      • Most commonly found of all stratified epithelia
      • Main functions include protection
      • May or may not contain keratin
      Home Stratified Cuboidal Stratified Columnar Transitional
      • It is rare to find in the body
      • Found in the ducts of larger glands
      • Consists of only two layers
      Home Stratified Squamous Stratified Columnar Transitional
      • Not commonly found in the body
      • It is located in smalls amounts in specific areas of the body
      • Usually found in junctions of two other types of epithelium
      Home Stratified Squamous Stratified Cuboidal Transitional
      • They have the ability to alter their shape
      • Basal cells are cuboidal or columnar
      • Apical layer consists of domelike or squamous shaped cells
      Home Stratified Squamous Stratified Cuboidal Stratified Columnar
      • They are highly cellular
      • Responsible for much of
      • body’s movement
      • Three different types
      Home Skeletal Muscle Cardiac Muscle Smooth Muscle
      • Attach to bones of the skeleton
      • Forms the body’s flesh
      • Allows the body to voluntarily create movement
      Home Cardiac Muscle Smooth Muscle
      • Found only in the walls of the heart
      • Creates intercalated discs
      • Aids in propelling blood throughout the entire body
      Home Skeletal Muscle Smooth Muscle