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layers of cells covering body surfaces and lining cavities

Epithelial tissues, also known as epithelia, are layers of cells that cover the surfaces of the body, both inside and out. They form the outer layer of the skin, line the cavities and organs, and are involved in protection, secretion, and absorption. These tissues are crucial for creating barriers and interfaces between different environments, such as the skin protecting against pathogens and the lining of the gut absorbing nutrients.

Related Terms

• Epithelium
• Squamous Epithelium
• Stratified Epithelium
• Epithelial Stem Cells
• Epithelial Stem Cell Differentiation
• Epithelial Components
• Epithelial Regeneration
• Epithelial-Mesenchymal Interactions