The endoderm.
Mucous membranes line the digestive and respiratory tracts.
Mucus
The Epithelium
The Epithelium
The Wine glass shaped cells that secrete mucus are called "goblet cells". These are simple columnar epithelial cells found scattered among the epithelial linings of intestine and respiratory tract.
The digestive and respiratory systems share the mouth and the pharynx. The respiratory system also includes the glottis, trachea, bronchi, bronchioles and alveoli.Buccal cavity? Pharynx?pharynxThe Larynx
Some animals have relatively short digestive tracts because they are carnivores. Herbivores need longer digestive tracts than carnivores in order to digest cellulose.
Mucus is a slippery secretion produced by mucous membranes in the body. It helps protect and lubricate various organs and passages, such as the respiratory and digestive tracts.
pharynx( and for those who didn't know its the very back of your mouth)
Cilia are hairlike structures found along the surface of mucous membranes that help in moving mucus and trapped particles out of respiratory and digestive tracts. They aid in the removal of foreign particles and debris, promoting overall respiratory and digestive health.
incomplete
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).