Which part of the digestive system is referred to as the 'Large Intestine'?

The term 'Large Intestine' specifically refers to a major structure in the human digestive system which encompasses parts like the cecum, colon, rectum, and anal canal. Its primary functions include absorbing water, electrolytes, and nutrients from the remaining indigestible food matter, and compaction of waste into feces for elimination. The name 'Large Intestine' is derived from its larger diameter compared to the 'Small Intestine,' despite the small intestine being longer in length.

In the context of the options provided, 'Big gut' is a colloquial or informal term that is sometimes used to refer to the large intestine, which may lead to some confusion. However, it is not the standard or anatomical term utilized in medical or biological contexts to describe this part of the digestive system. The 'Small Intestine,' 'Rectum,' and 'Stomach' are distinct components of the digestive system with specific functions that do not encompass the complete structure of the Large Intestine.