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
When I Start To (Break It All Down) When I Start To (Break It All Down) "When I Start To (Break It All Down)" is a single by English synthpop duo Erasure, released as the lead single from their 2011 album "Tomorrow's World". The song was written by Andy Bell and Vince Clarke, whilst it was produced by electropop musician Frankmusik who produced the rest of the "Tomorrow's World" album. The song was released on 23 September 2011, and received its first UK airplay on BBC Radio 2's Ken Bruce show on 15 August. It was the first eligible single (discounting remixed versions of hit singles), since the