The appendix, also called the vermiform appendix, is a troublesome pouch attached to the first portion of the large intestine. Digestion takes place almost continuously in a watery, slushy environment. The large intestine absorbs water from its inner contents and stores the rest until it is convenient to dispose of it. The appendix has no function in modern humans; however, it is believed to have been part of the digestive system in our primitive ancestors.