👉 The term "subepithelial" refers to a layer of tissue that is located between the outermost layers of cells and the surrounding tissues. It is primarily found in the skin, where it serves as a barrier against external agents such as pathogens and toxins. Subepithelial tissue can also be found in other organs such as the lining of the digestive tract, the lining of the respiratory system, or the lining of the urinary bladder.
