1 Purulent discharge and Purulent, sticky discharge (2 causes). 2  Purulent discharge and Sensory symptoms (2 causes). 3  Purulent discharge and Skin symptoms (2 causes). 4  Purulent discharge and Temperature symptoms (2 causes). 5  Purulent discharge and Areolar lesions (1 cause). 6  Purulent discharge and Arm symptoms (1 cause).
Membranes. 1  Mucous membranes line cavities that open to the outside of the body (digestive, respiratory, excretory, and reproductive tracts). 2  They contain glands and secrete mucus. 3  Serous membranes line trunk cavities that do not open to the outside of the body (pleural, pericardial, and peritoneal cavities).
Mucosa: The surface of the stomach is lined by a simple columnar epithelium whose cells are called surface mucous cells. There are numerous invaginations of the surface epithelium into the lamina propria. These invaginations are called gastric pits or foveolae, and are also lined by surface mucous cells.he surface of the stomach is lined by a simple columnar epithelium whose cells are called surface mucous cells. There are numerous invaginations of the surface epithelium into the lamina propria.