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.
Difference between US and UK has many layers as even the English spoken in both countries differ. The US is expanded as the United States whereas the UK is expanded as the United Kingdom. Sometimes, US is also known as USA, which stands for United States of America.