Appendix—not useless at all
We grew up believing that appendix was just a useless and unnecessary organ in the digestive system and serves no purpose at all—but we may be wrong.
The appendix may be a resorvoir of good bacteria which is necessary and vital for our immune system.
William Parker, PhD, assistant professor of experimental surgery at Duke University Medical Center, says in a news release: "Once the bowel contents have left the body, the good bacteria hidden away in the appendix can emerge and repopulate the lining of the intestine before more harmful bacteria can take up residence."
When we suffer in diarrhea and other digestive system related diseases, the good bacteria inside our digestive tract are being flushed out; with the appendix containing species of good bacteria, our digestive system would be safe from more harmful bacteria as the good ones repopulate