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The appendix is a narrow, dead-end tube about three-to-four inches long that hangs off of the cecum (the beginning of the large intestine).
Definition of Appendix
The appendix is a narrow, dead-end tube about three-to-four inches long that hangs off of the cecum. Although it's commonly referred to as the "appendix," the real name for it is "vermiform appendix."
Diagram of the Appendix
This diagram shows where the appendix is in relation to the entire large intestine.

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