Which organ is lined with stratified epithelium?

The mouth is lined with stratified epithelium, which plays a crucial role in protecting the underlying tissues from mechanical injury, pathogens, and desiccation. Stratified epithelium consists of multiple layers of cells, which is particularly advantageous in areas of the body that experience abrasion or friction, such as the oral cavity where food intake and chewing occur.

The stratified squamous epithelium found in the mouth helps to maintain the integrity of the tissue as it endures various stressors. Such a structure enables it to resist damage and provides a robust barrier, which is essential for the health of the oral cavity.

In contrast, other organs listed are generally lined with different types of epithelial tissues: the intestines are primarily lined with simple columnar epithelium, which facilitates absorption and secretion; the skin, while it does have a stratified epithelium, is primarily classified as an organ whose outer layer contains keratinized stratified squamous epithelium, emphasizing protective functions rather than the specific trait of being stratified without keratin; and the stomach is lined with simple columnar epithelium that aids in protection from gastric acid and secretes digestive enzymes. Each of these types of epithe