BSIP VEM / SCIENCE PHOTO LIBRARY BSIP VEM / SCIENCE PHOTO LIBRARY
Appendix. Illustration of a female torso showing the position and anatomy of a healthy human vermiform appendix (appendix). The worm-like appendix (circled) is found where the small intestine (pink, at lower centre) meets the colon (red). In the enlargement at upper right, the ileum of the small intestine joins onto the ascending colon (cut-away). The appendix is a lymphoid structure that may be involved in white blood cell production. Due to its small opening the appendix is sometimes blocked by parasites or faecal matter. This can lead to inflammation, infection and, if tissue death occurs causing the appendix wall burst, appendicitis.
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