Dermatologists often evaluate and treat conditions involving the mucous membranes ... secretions derive from blood vessels, submucosal glands, epithelial cells (including goblet cells), and ...

Salivary glands can be classified as serous, mucous or seromucous (mixed). In serous secretions, the main type of protein secreted is alpha-amylase, an enzyme that breaks down starch into maltose and ...

Tears are made up of three layers: a mucous, watery, and oily layer, each of which comes together from separate glands. When the gland that produces the oily layer doesn't function properly ...