The intestine (colon or ileum) is brought to the stoma to create an artificial outlet for the gastrointestinal tract (ostomy). This allows safe removal of waste material from food digestion when a portion of the intestine is removed or needs time to heal.
Key difference: The main difference between USA and Canada is in their government. USA is a federal constitutional republic, whereas Canada is a constitutional monarchy. Further differences include geographic and climate. Canada also differs in its stance against some political and cultural aspects.
The United States is a developed country and has the world's largest national economy by nominal and real GDP, benefiting from an abundance of natural resources and high worker productivity.While the U.S. economy is considered post-industrial, the country continues to be one of the world's largest manufacturers. citizen of the United States is an . American . United States, American and U.S. refer to the country adjectivally (American values, U.S. forces).  American  rarely refers to subjects not connected with the United States.