The mucus secreting membrane lining all body cavity is derived from endoderm. Together it makes very large surface area. For example surface area of the lungs is 100 square meters and that of small intestine is more than 200 square meters.
The mucus membrane in the nasal cavity aids in secreting mucus which acts as an adhesive tool in capturing or slowing down external or foreign bacteria and substances from entering your respiratory system particularly your lungs
The lining of the mouth is an example of a mucous membrane. Mucous membranes line various cavities in the body and produce mucus to protect and lubricate the underlying tissues.
The mucous membrane lining of the cheek is called the buccal mucosa. It is a smooth, moist inner lining that covers the cheeks and lines the inside of the mouth. The buccal mucosa plays a role in protecting the tissues underneath and secreting mucus to aid in swallowing and digestion.
Mucus
Mucus Membrane
The types of membranes lining cavities that communicate with the exterior of the body are mucous membranes. These membranes are found in areas such as the respiratory, digestive, urinary, and reproductive tracts, and they secrete mucus to protect and lubricate the tissues.
Mucus-secreting glands are typically found in the lamina propria, which is the connective tissue layer of a mucous membrane. This layer lies beneath the epithelial layer and provides support, nourishment, and houses various glands, including those that secrete mucus. The mucus helps to lubricate and protect the epithelial surface.
The sticky fluid produced by the mucous membrane is called mucus. It helps to protect and lubricate the lining of the respiratory, digestive, and reproductive tracts.
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Digestive system .
Mucus-secreting goblet cells are not found in the nervous or skeletal systems.
The stomach has a lining of protective mucus.