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  1. What Does the Appendix Do? Anatomy, Function, Diseases

    Oct 23, 2025 · The appendix is a small, finger-shaped organ that branches off the cecum. The cecum is a pouch situated at the junction of the small intestine and large intestine whose main …

  2. Appendix (anatomy) - Wikipedia

    The appendix is an important component of mammalian mucosal immune function, particularly B cell -mediated immune responses and extrathymically derived T cells.

  3. What Does the Appendix Do? - Healthline

    Sep 16, 2025 · Modern research suggests it plays a role in intestinal health and immune support. The appendix is about 4 inches long and looks like a small, narrow tube. It’s attached to the …

  4. What Is the Purpose of the Human Appendix? - ScienceInsights

    Nov 26, 2025 · The appendix is a primary site for the production of Immunoglobulin A (IgA), an antibody secreted into the gut to regulate the density and quality of the intestinal flora. …

  5. Appendix | Definition, Location, Function, & Facts | Britannica

    Nov 28, 2025 · Appendix, in anatomy, a vestigial hollow tube that is closed at one end and is attached at the other end to the cecum, a pouchlike beginning of the large intestine into which …

  6. Appendix: What Is It, and What Does It Do? - Everyday Health

    Aug 22, 2022 · Appendix: What Is It, and What Does It Do? The appendix is a thin, roughly four-inch-long tube that’s part of your gastrointestinal (GI) tract. The GI tract is a complex group of …

  7. What Does The Appendix Do? » ScienceABC

    Jun 2, 2024 · Although the exact function of the appendix is still unknown, it is thought to be involved in the immune system and in the early development of the fetus.

  8. Why Humans Have an Appendix: Its True Function

    Another prominent theory suggests the appendix functions as a “safe house” or reservoir for beneficial gut bacteria. Its unique anatomical structure, resembling a cul-de-sac with a narrow …

  9. Appendix - Structure, Function, Location, Anatomy, Diagram

    Though its function is not entirely understood, it is thought to play a role in immunity. The appendix is located in the right lower quadrant (RLQ) of the abdomen. It arises from the …

  10. The Appendix: From “Useless Organ” to Guardian of Gut and …

    Aug 18, 2025 · In fact, it may be one of the most underrated organs in the human body, playing a crucial role in immunity, digestion, microbiome health, and even brain function. Far from …