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
Break Down (EP) Imported Album category for the first week of July. The album's title track "Break Down" was the first-place winner for two consecutive weeks on Mnet's M! Countdown music show, for 16 and 23 June 2011; and also won for two consecutive weeks on KBS's Music Bank. It is also certified platinum in Taiwan and Kim was presented with a platinum record by Warner Music Taiwan CEO Chen Ze Shan in a press conference held in Taiwan. Break Down (EP) Break Down is the debut Korean solo mini album of Kim Hyun-joong of South Korean boy band SS501. It was released