Here are 10 things you may not know about Lean: 1  Codeine, one ingredient in âLeanâ is an opiate similar to: Heroin, Morphine, Oxycontin or Vicodin. 2  Weâve coined Lean as, âHip-Hopâs New Heroinâ. 3  Not a good look by the way, if youâve ever seen a heroin addict.
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.
Parotid is a Greek word that means near the ear. Parotid glands are the largest of the salivary glands. They are paired glands that contain mucus and serous cells and a ductal network.arotid, malignant tumors. Contrast-enhanced CT image of neck demonstrates a well-circumscribed, heterogeneously enhancing mass in the left parotid gland; this is a benign pleomorphic adenoma.