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).
The wall of stomach, like the other parts of the gastrointestinal tract, consists of four layers : Mucosa, Submucosa, Muscularis, Serosa. The mucosa of stomach is divided in three layers. They are : The surface epithelium : surface epithelium contains gastric pits and gastric glands. Gastric pits are invagination of epithelium into lamina propria (second layer of mucosa). Gastric glands produce enzymes, HCl (hydrochloric acid) and gastric hormones.