Appendix is vestigial in man but may play role in:
Correct answer: C. Immunity
- A. Digestion
- B. Excretion
- C. Immunity
- D. Movement
Explanation
The appendix has been found to play a role in mammalian mucosal immune function. It is believed to be involved in extrathymically derived T-lymphocytes and B-lymphocyte mediated immune responses and is also said to produce early defenses that help prevent serious infections in humans. Therefore the answer is C.
This question appeared on the ETEA MDCAT 2009 paper, which you can sit online with every answer explained.
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