Hydrochloric acid enzyme pepsin by self-cleavage. After leaving the stomach, the hydrochloric acid of the chyme is neutralized in the duodenum by sodium bicarbonate. The stomach itself is protected from the strong acid by the secretion of a thick mucus layer, and by secretin induced buffering with sodium bicarbonate. Heartburn or peptic ulcers can develop when these mechanisms fail. Drugs of the antihistaminic and proton pump inhibitor classes can inhibit the production of acid in the stomach, and antacids are used to neutralize excessive existing acid. Concentrated hydrochloric acid (fuming hydrochloric acid) forms acidic mists. Both the mist and the solution have
Break Down (album) Break Down (album) Break Down is the second studio album by Mandopop boy group Super Junior-M. It was released online on January 7, 2013 by S.M. Entertainment and distributed by KMP Holdings. It is their first release in nearly 2 years, since the release of their 2011 EP, "Perfection", and their first studio album in nearly 5 years, since the release of their first 2008 studio album, "Me". After their second EP "Perfection" released in 2011, the Korean members returned to their activities as part of the main group, Super Junior. The main group released their 5th album "Mr. Simple"