Picture of Appendix 2
Appendix: The appendix is a closed-ended, narrow, worm-like tube up to several inches in length that attaches to the cecum (the first part of the colon). (The anatomical name for the appendix, vermiform appendix, means worm-like appendage.) The wall of the appendix contains lymphatic tissue that is part of the immune system that makes antibodies.
Text: MedicineNet, Inc.