Doctors now believe that the appendix is actually, left over from a previous time in human evolution. Learn more about the functions of the appendix. Others say that it is important in the way that the immune system works.
It exists in humans and a small number of other mammals, including the koala and apes. The appendix is a small hollow, finger like pouch that hangs off of the cecum. You are asking about the one attached to the colon digestive tract. As an adult, the appendix actually serves a number of important functions, provided it remains healthy. When it does get attention, it's usually because it's become infected. That's crucial to understand because it sheds light on the question, Why do they hate us. But the reputation of the appendix is improving. Why do humans have an appendix. In fact, it serves a vital purpose in health. There are several ideas why we have these. Surprising Functions of the Appendix. Historically, many people have believed the appendix serves little purpose. It is said that the appendix was used thousands of years ago when human ancestors were eating raw meat and it helped digest that meat. This one is often called the vermiform appendix because it looks like a worm.