What is "appendix"?

The appendix is a small, finger-shaped pouch located at the junction of the small and large intestines in the human body. While its exact function remains unclear, it is believed to play a role in the immune system, as it contains lymphatic tissue. The appendix can become inflamed, resulting in a condition known as appendicitis, which requires surgical removal to prevent complications. Though it is considered a vestigial organ, the appendix may have some immunological significance and potential contributions to gut health.