Classification of Epithelial Tissue
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21 terms
Terms | Definitions |
|---|---|
 The eight types are classified according to | the way cells are arranged in layers, and by the shape. |
| Simple Layers | One layer |
| Stratified Layers | Sever layers |
| Pseudostratified | One layer that appears as several |
| Squamous shaped | Flat |
| Cuboidal shaped | Cube like |
| Columnar shaped | Rectangular |
| Transitional shaped | Variable |
| Simple Squamous | Single layer of flat,scale like cells |
| Simple Cuboidal | A single layer of cube shaped cells and performs the functions of secretion & absorption |
| Simple Columnar | Single layer of retangular cells and can exist in 2 forms |
| Nonciliated Simple Columnar | contains microvilli to increase surface area and the rate of absorption and goblet cells that secrete mucus |
| Ciliated Simple Columnar | contains cells with cilia, motile, hair like processes that help to move fluids or particles along a surface. |
| Stratified squamous | consists of several layers of cells in which the top layer of the cell is flat, and the deeper layers of the cell vary in shape |
| Keratinized Stratified Squamous | A tough layer of keratin is deposited in the surface cells |
| Nonkeratinized Stratified Squamous | Doesn't contain keratin and remains moist |
| Stratified cuboidal | Rare tissue consisting of 2 or more layers of cube like shaped cells whose function is mainly protection |
| Stratified Columnar | Several layers of cells which only the top layer is columnar |
| Pseudostratified Epithelium | All cells are attched to the basement membrane but some don't reach the apical structure |
| Pseudostratified Ciliated columnar | the cells that reach the surface either secrete mucusor bear cilia that sweep away mucus and trapped foreign particles |
| Pseudostratified nonciliated columnar | contains no cilia or goblet cells |
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