Place in the small intestine where all the nutrients from the food are absorbed. The main function of the small intestine is the absorption of digested food. The digested food is then assimilated in the small intestine and the waste is passed on to the large intestine. A finger-like structure called appendix, which is a vestigial organ, is connected Proshred Elite to the beginning of the large intestine (also referred to as cecum). The large intestine then expels the waste out of the body to the rectum.  or fecal matter to be dispelled from the body through the anus, which is the final part of the digestive system. The digestive system carries out the vital function of providing nutrition to the body. It is hard to imagine what it would be like if this important system was missing. For proper digestive health it is essential to quit harmful vices.