A pseudostratified columnar epithelia are tissues formed by a single layer of cells that give the appearance of being made from multiple layers. The nuclei of these epithelial cells are at different levels leading to the illusion of being stratified. The goblet cells secrete mucus, a viscous fluid composed primarily of highly glycosylated proteins called mucins suspended in a solution of electrolytes. The basement membrane is a thin fibrous tissue that separates the lining of an internal or external body surface from underlying connective tissue. The cilia functions to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation.
A pseudostratified columnar epithelia are tissues formed by a single layer of cells that give the appearance of being made from multiple layers. The nuclei of these epithelial cells are at different levels leading to the illusion of being stratified. The goblet cells secrete mucus, a viscous fluid composed primarily of highly glycosylated proteins called mucins suspended in a solution of electrolytes. The basement membrane is a thin fibrous tissue that separates the lining of an internal or external body surface from underlying connective tissue. The cilia functions to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation.