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Unformatted text preview: BIOL 1151L – Lab 2 Identification Sheet Tissues For this lab we will only be looking at one type of tissue. Epithelial tissues are found lining or covering various organs in the body. They can be recognized by the presence of a free surface, where the cells are in contact with spaces inside the body (e.g., the cells that line your blood vessels and digestive system). They are held in place by being anchored to a basement membrane. These types of cells are classified based on the shape of the cells and the number of layers. A simple epithelial tissue has one layer of cells, while a stratified epithelium has at least 2 layers. A pseudostratified epithelium is one that appears to have multiple players, but in fact has only one. There are three main shapes: squamous (squashed flat cells), cuboidal (square cells), and columnar (rectangular-...
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This document was uploaded on 02/08/2012.
- Spring '09