Lab_2_Body_Cavities_and_the_Integumentary_System

Lab_2_Body_Cavities_and_the_Integumentary_System - LAB #2....

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LAB #2. BODY CAVITIES AND THE INTEGUMENTARY SYSTEM Page | 1 STATION 1. HISTOLOGICAL EXAMINATION OF EPITHELIA Relevant Textbook Readings: Chapter 4, pg.113 - 124 OBJECTIVES 1. To name, classify and describe the various types of epithelia. 2. To learn the primary functions and locations of the different types of epithelial tissue. 3. To understand the structural and functional differences among the types of epithelia. A. DEFINITION OF EPITHELIUM The epithelium is a layer or layers of cells that cover a body surface or line a body cavity. All internal and external surfaces of the body are lined by epithelia! By acting as an interface tissue, the epithelium performs several functions including: 1) protection, 2) absorption, 3) filtration, 4) excretion, 5) secretion and 6) sensory reception. Some important characteristics of epithelium are cellularity, polarity, avascularity and regeneration. With your TA, define each of these terms in the table below. Characteristics of Epithelium Definition Cellularity Polarity Avascularity Regeneration B. EPITHELIAL CELL TYPES The following cell types comprise the epithelium. Their distinctive shape and composition dictate how the epithelium functions in a body area or cavity. Please observe the following cell types under the microscope. With your TA, identify the location(s) of the different types of epithelia and discuss differences in function between the various types of epithelia. SEER Training Modules, Epithelial Tissue. U.S. National Institutes of Health; National Cancer Institute, 01/12/2010. http://training.seer.cancer.gov/.
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LAB #2. BODY CAVITIES AND THE INTEGUMENTARY SYSTEM Page | 2 TYPE LOCATION FUNCTIONS Simple Squamous Simple Cuboidal Simple Columnar Pseudostratified Columnar Stratified Squamous Stratified Cuboidal Transitional
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LAB #2. BO STATION Relevant Textb OBJECTIV 1. To l 2. To u 3. To i A. LAYER The skin, functions w 1 2 3 Strictly spea layer of sub important f Using the m skin. In the STRUCTU COMPON FOUND IN LAYE ODY CAVI 2. MODE book Readings: VES learn the bas understand t identify the S OF THE also called hich are cri 1. ________ 2. ________ 3. ________ aking, the s bcutaneous functions th models of th e table below URES/ NENTS N EACH ER ITIES AND ELS OF TH : Chapter 5, pg. sic skin laye the vital fun main struct SKIN the integum itical to our __________ __________ __________ skin is comp tissue, just at we will d he skin at y w, list struct EPIDE D THE INT E SKIN .148 – 162 rs and their nctions of th ural feature ment , cover survival. W ___ ___ ___ posed of two deep to th discuss today your station tures and co ERMIS TEGUMEN component he integumen s of the epid rs the entir ith your TA 4. ____ 5. ____ 6. ____ o layers: 1) e dermis, is y.
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Lab_2_Body_Cavities_and_the_Integumentary_System - LAB #2....

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