simple cuboidal epithelium lines the lumen of the respiratory tube indicated here.
The primary tissue in glands, the epithelium is a kind of body tissue that covers all of the interior and exterior surfaces of your body, lines body cavities, and lines hollow organs. Depending on its location in the body, epithelial tissue can perform a number of different tasks, such as absorption, secretion, and protection.
The four primary kinds of tissue that make up your body's organs are as follows:
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