Digestion 0.5% hydrochloric acid (HCl), which lowers the pH to the desired pH of 1-3. Acid release is also triggered by acetylcholine and histamine. The intestinal phase has two parts, the excitatory and the inhibitory. Partially digested food fills the duodenum. This triggers intestinal gastrin to be released. Enterogastric reflex inhibits vagal nuclei, activating sympathetic fibers causing the pyloric sphincter to tighten to prevent more food from entering, and inhibits local reflexes. Protein digestion occurs in the stomach and duodenum in which 3 main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food
What Kate Does week." VanDerWerff of the "LA Times", Ryan of the "Chicago Tribune", Sepinwall of "The Star-Ledger", Jensen of "Entertainment Weekly" and Mark Medley of the "National Post" also found the episode to contain humorous lines. This episode was watched by 11 million American viewers and 1.57 million Canadian viewers. What Kate Does "What Kate Does" is the 106th television episode of the American Broadcasting Company's "Lost" and third episode of the sixth season. It was written by executive producers Edward Kitsis and Adam Horowitz and directed in September 2009 by Paul Edwards. "What Kate Does" was first aired February 9, 2010,