Appendix

Definition

The appendix is a small, tube-like structure attached to the cecum of the large intestine. It is considered part of the gastrointestinal tract and plays a role in gut immunity.

5 Must Know Facts For Your Next Test

1. The appendix contains lymphoid tissue that can contribute to immune function by harboring beneficial bacteria.
2. Appendicitis, an inflammation of the appendix, can lead to severe abdominal pain and may require surgical removal.
3. Historically considered vestigial, recent studies suggest the appendix may serve as a reservoir for beneficial gut microbiota.
4. The location of the appendix is typically in the lower right quadrant of the abdomen.
5. Appendectomy, or surgical removal of the appendix, does not significantly impair digestive or immune functions.

Review Questions

• What role does the appendix play in gut immunity?
• Why might an appendectomy be necessary?
• Where is the appendix located within the human body?

Related terms

cecum:

A pouch connected to the junction of the small and large intestines.

appendicitis: Inflammation of the appendix, often requiring surgical intervention.

gut microbiota: The community of microorganisms living in the digestive tracts of humans and other animals.