Nat Rev Gastroenterol Hepatol. 2009;6:331-341. The discovery of gastric polyps during an endoscopic examination of the stomach is a relatively common occurrence for gastroenterologists. In fact, a diverse array of polyps and polypoid lesions are found in the stomach.
Most animals have three major pairs of salivary glands that differ in the type of secretion they produce: 1  parotid glands produce a serous, watery secretion. 2  submaxillary (mandibular) glands produce a mixed serous and mucous secretion.3  sublingual glands secrete a saliva that is predominantly mucous in character.cini in the parotid glands are almost exclusively of the serous type, while those in the sublingual glands are predominantly mucus cells. In the submaxillary glands, it is common to observe acini composed of both serous and mucus epithelial cells.
saliva, spittle, spit-a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches.parotid gland-a large salivary gland that produces 50% of daytime saliva; in human beings it is located in front of and below each ear.alivary gland-any of three pairs of glands in the mouth and digestive system that secrete saliva for digestion. mouth, oral cavity, oral fissure, rima oris-the opening through which food is taken in and vocalizations emerge; he stuffed his mouth with candy.