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Recommended video: Simple epithelium [13:17]
Structures and types of simple epithelia.

Mesothelium is a simple squamous epithelium that forms the epithelial layer of serous membranes which line body cavities and internal organs. Serous membranes, and therefore mesothelium, line the pericardial, pleural and peritoneal cavities.

Mesothelium is composed of specialized mesothelial cells which produce serous fluid, a thin, watery fluid that fills the narrow spaces between parietal and visceral layers of serous membranes. This fluid creates smooth lubricated surfaces so that organs are able to move without friction

Terminology English: Mesothelium
Latin: Mesothelium
Definition Simple squamous epithelial tissue lining major body cavities and forming the epithelial layer of serous membranes
Function Produces the protective and lubricating serous fluid, allowing organs to move without friction

Learn more about simple epithelial tissue with this study unit (and article):

Mesothelium: want to learn more about it?

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