THE APPENDIXThe appendix is a vermiform ("worm-like) extension of the cecum, a section of the large intestine[1]
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FUNCTIONThe exact function of the appendix is unknown, however there are 3 main theories[2]:
1. Immune function (contains lymphoid tissue which is involved in the immune response) 2. Vestigial structure (complete or partial loss of function associated with evolutionary development) 3. Maintain normal gut bacteria (Storage for good bacteria to help repopulate the colon following a pathogenic infection that cleans out the colon - such as pathogens which cause diarrhea) Currently the most favoured theory |
References
1. McCance, K.L. & Huether, S.E.. (2014). Pathophysiology: The biologic basis for disease in adults and children (7th Ed). Maryland Heighs, MO: Mosby Elsevier.
2. Bollinger, R. R., Barbas, A. S., Bush, E. L., Lin, S. S., & Parker, W. (2007). Biofilms in the large bowel suggest an apparent function of the human vermiform appendix. Journal of theoretical biology, 249(4), 826-831
1. McCance, K.L. & Huether, S.E.. (2014). Pathophysiology: The biologic basis for disease in adults and children (7th Ed). Maryland Heighs, MO: Mosby Elsevier.
2. Bollinger, R. R., Barbas, A. S., Bush, E. L., Lin, S. S., & Parker, W. (2007). Biofilms in the large bowel suggest an apparent function of the human vermiform appendix. Journal of theoretical biology, 249(4), 826-831