PPT-THE EPITHELIAL TISSUE Lab 2

ZOO 103 Structure They are c losely packed cells Specialized to cover external surfaces or line internal cavities Epithelial cells are packed tightly together with almost no intercellular . Study of cells, tissues and organs as seen with the help of microscope. Study . Histology. Often called . Microscopic Anatomy. Greek word – . . Histos. = tissue. . Logia. =science/study. Cells work together in functionally related groups called tissues. Anatomy and . Physiology. Objectives. Define tissue. Describe the germ tissue layers, their location, and what tissues they produce in eucoelomate animals (humans).. List the 4 major types of tissues of the human body.. Chapter 2. *You will need your notebook*. Tissues. Groups of closely associated cells that are similar in structure and perform . a. common function. Chapter 2: Cells and Tissues. Histology. . = study of tissue. 9/21. Review the origins of the four primary tissue types. What extracellular fibers are found in connective tissue?. What is the function of connective tissue?. What are characteristics of the ten different connective tissues?. Lab 2. ZOO 103. Structure . They are c. losely packed cells.. . Specialized. to cover external surfaces. . or line internal cavities.. Epithelial cells are packed tightly . together, with almost . Why is starch agar used?. -To see if saliva was present and broke down the starch.. Positive control . –used to show what the change looks like. Negative control. – used to what no change looks like. Section 1 – Epithelial Tissue. (pp. 115-121). Levels of Structural Organization. Tissue. - Billions of structurally-similar. cells working together to perform a . common function. -. Includes extracellular . J. Matthew Velkey. matt.velkey@duke.edu. . 452A Davison. Resources. Textbook: . Junqueira’s Basic . Histology, 12. th. ed.. . (each student should . have a copy). . Atlas:. . Color Atlas of Histology, . DR. AYSER HAMEED. LEC.5. Healing or repair by . connective tissue . is encountered . if:-. 1. A severe or persistent (chronic) tissue injury that result in damage to . parenchymal. cells as well as the . Study . Histology. Often called . Microscopic Anatomy. Greek word – . . Histos. = tissue. . Logia. =science/study. Cells work together in functionally related groups called tissues. 4 basic type of tissues:. 1) Simple Columnar.  . A. Diagram (cells are the layer of pink, elongated cells, the purple cells within them are goblet cells).  . B. Name 2 areas where it is located in the body. .  . C. What is the function of a “goblet” cell?. Epithelial Basement Membrane Dystrophy Since its initial description by Cogan in 1964,2 TOUCH BRIEFINGS 2010Ying Qian, William J Dupps, Jr, David M Meisler and Bennie H JengCole Eye Institute, Clevel . Tissues have two interacting components:. Cells .. . Extracellular matrix (ECM).which is consist of many kinds of macromolecules.. The (ECM) function :. Supports the cells and the fluids that transports nutrients to the cells .. . Root formation. The epithelial cells of inner and outer dental epithelium proliferates from the cervical loop of enamel organ to form a . bilaminar. structure called . hertwigs. epithelial root sheath .