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Epithelial Epithelial tissue is made of closely-packed cells arranged in flat sheets. Epithelia form the surface of the skin, line the various cavities and tubes of the body, and cover the internal organs. Epithelia that form the interface between the internal and external environments. Skin as well as the lining of the mouth and nasal cavity. These are derived from ectoderm. Inner lining of the GI tract, lungs, urinary bladder, exocrine glands, vagina and more. These are derived from ... Animal tissues might sound like some complex biology stuff, but once you get the hang of it, it all clicks. These are the building blocks that keep your body moving, sensing, protecting, and staying alive - from muscle tissue that helps you run to nervous tissue that lets you react in a split second. This blog covers what animal tissues are and all the types of animal tissue, key examples, simple functions, and why they matter - whether you're revising for exams or just trying to finally get ... Cells of a tissue are often held together by cell junctions. General Characteristics. It occurs as a protective covering and consists of one or more layers of cells. The epithelium is not traversed by blood vessels. The epithelial tissue rests on non-cellular basement membrane. Learn about the four basic types of animal tissues: epithelial, connective, muscle and nervous. Find out their characteristics, functions, classification and examples with diagrams and quiz.
