Food is broken down during digestion by a combination of caustic hydrochloric acid and an enzyme ca...
Read the full transcript »
Food is broken down during digestion by a combination of caustic hydrochloric acid and an enzyme called pepsin. The stomach and small intestine are protected from these chemicals by special cells that secrete mucous. A peptic ulcer occurs if this protective mechanism fails for some reason, and these chemicals damage the stomach and small intestine.
Copyright © 2005 - 2015 Healthline Networks, Inc. All rights reserved for Healthline.