Esophagus alveolus is a structure in humans lined with mucous membranes, supported by cartilaginous rings and acting as an airway.
Mucous membrane, also known as mucosa (plural: mucosae), is a layer of cells that surrounds the body and its organs. of internal parts. It has one or more layers of epithelial cells that cover the normal tissue layer. It is usually of endodermal origin and continues to the skin and body openings such as the eyes, eyelids, ears, inside the nose, inside the mouth, lips, genitals, urethral opening and energy. . Some mucous membranes secrete the nose, a large protective fluid. The function of the skin is to stop infection and dirt from entering the body and to prevent the body from losing water.
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