North Korea has long complained about U.S.-South Korean military exercises â and not entirely without reason. (Ask a Georgian how Russiaâs Kavkaz-2008 exercise ended.) As the Clinton administration neared a nuclear deal with North Korea, it suspended the old, annual Team Spirit exercise that so irritated North Korea.
The stomach's main function is digestion. It does this by: The stomach uses pepsin (enzyme) and peptidase (another enzyme) to break down proteins in your food. The acid released by the stomach doesn't break down food it only provides a good environment for the enzymes to work in.
The stomach can be divided into four regions based on shape and function: 1  The esophagus connects to the stomach at a small region called the cardia. 2  The cardia is a narrow, tube-like region that opens up into the wider regions of the stomach.