Mucous membranes line the digestive and respiratory tracts.
Simple columnar epithelium of the digestive tract can present as either ciliated or non-ciliated. The ciliated moves mucus in the respiratory system, the non-ciliated lines the gastrointestinal tract.
Any body area that has an outlet to the out side is covered in a mucous membrane: respiratory tact. digestive tract, urinary tract, even the membrane that surrounds the orbit of the eye (eye ball).
epithelium
The tissue that lines internal organs is called epithelial tissue. It acts as a protective barrier and helps with the absorption and secretion of substances in the body. Epithelial tissue can be found in the digestive tract, respiratory tract, and other organs.
The tissue lining your inner nasal passages is made from ectoderm. However, the rest of the respiratory tract lining is made of endoderm.
Cats
Epithelial tissue can be found covering the surfaces of organs in the body, such as the skin, lining the digestive tract, respiratory tract, and blood vessels. It also lines body cavities and forms the outer layer of the skin.
PeristalsisPeristalsis
epithelial tissue.
Simple columnar epithelial
The outpockets of an anterior digestive tract that may develop into respiratory structures are called respiratory diverticula. These diverticula are found in organisms like insects and some mollusks, where they eventually form into structures like tracheae or lungs for gas exchange.
Epithelial tissue lines body surfaces such as the skin, respiratory tract, and digestive tract. It acts as a protective barrier against pathogens, regulates the exchange of substances between the body and external environment, and helps to maintain homeostasis.