Classification of Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Number of cell layers  Simple – one layer  Stratified.

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Presentation transcript:

Classification of Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Number of cell layers  Simple – one layer  Stratified – more than one layer Figure 3.16a

Classification of Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Shape of cells  Squamous – flattened  Cuboidal – cube-shaped  Columnar – column-like Figure 3.16b

Simple Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Simple squamous  Single layer of flat cells  Usually forms membranes  Lines body cavities  Lines lungs and capillaries Figure 3.17a

Simple Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Simple cuboidal  Single layer of cube-like cells  Common in glands and their ducts  Forms walls of kidney tubules  Covers the ovaries Figure 3.17b

Simple Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Simple columnar  Single layer of tall cells  Often includes goblet cells, which produce mucus  Lines digestive tract Figure 3.17c

Simple Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Pseudostratified  Single layer, but some cells are shorter than others  Often looks like a double cell layer  Sometimes ciliated, such as in the respiratory tract  May function in absorption or secretion Figure 3.17d

Stratified Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Stratified squamous  Cells at the free edge are flattened  Found as a protective covering where friction is common  Locations  Skin  Mouth  Esophagus Figure 3.17e

Stratified Epithelium Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Transitional epithelium  Shape of cells depends upon the amount of stretching  Lines organs of the urinary system Figure 3.17f

Connective Tissue Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Connective Tissue Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Connective Tissue Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Connective Tissue Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscle Tissue Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Nervous Tissue Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Name That Tissue! Slide 3.54 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings