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Epithelial Tissues
Ch 4 Terms and types of epithelial tissues
18
Anatomy
Undergraduate 2
08/31/2009

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Term
Apical Surface
Definition
An upper free surface that is exposed to the body exterior or the cavity of an organ
Term
Basal Surface
Definition
A lower attatched surface
Term
Simple Epithelia
Definition
Single cell layer
Term
Stratified Epitherlia
Definition
Composed of two or more cell layers stacked one on top of the other
Term
Squamous Cells
Definition
Flattened scalelike cells
Term
Cuboidal Cells
Definition
Cells that are approximately as tall as they are wide
Term
Columnar Cells
Definition
Cells that are tall and column shaped
Term
Simple Squamous Epithelium
Definition
Flattened cells with a single layer of cells; Used for filtration in the lungs and kidneys
Term
Endothelium
Definition
'inner covering'; Lining in lymphatic vessels and in all hollow organs of the cardiovascular system
Term
Mesothelum
Definition
'middle covering'; found in serous membranes lining the ventral body cavity and covering its organs
Term
Simple Cuboidal Epithelium
Definition
Single layer of cells as tall as they are wide; used for secretion and absorption in the ducts of glands
Term
Simple columnar Epithelium
Definition
Single layer of tall, closely packed cells; For absorption and secretion within the digestive tract
Term
Psuedostratified Columnar Epithelium
Definition
Cells that vary in height which gives a false sense of multiple cell layers when there is only one; Secreting cells that line most of the respritory tract
Term
Stratified Epithelia
Definition
Contains two or more cell layers
Term
Stratified Squamous Epithelium
Definition
More widespread of the stratified epithelium; several layers; used for protection; External Skin
Term
Stratified Cuboidal Epithelium
Definition
Multiple layers of square cells; Found mostly in the ducts of some of the larger glands
Term
Stratified Columnar epithelium
Definition
Multiple layers of cells where the apical layer is made up of columnar cells; Used at junctions between two other types of epithelia;
Term
Transitional Epithelium
Definition
Cells which vary in appearance due to their ability to strech (distend); Forms the lining of hollow urinary organs
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