Appendix (anatomy)
(Redirected from Vermix)
Appendix (anatomy)
The appendix (or vermiform appendix; also cecal (or caecal) appendix; vermix) is a blind-ended tube connected to the cecum, from which it develops in the embryo. The cecum is a pouchlike structure of the colon, located at the junction of the small and large intestines.
The appendix has been widely regarded as a vestigial organ with no function. However, modern research suggests that the appendix may have some role in gut immunity.
Structure[edit | edit source]
The appendix is located near the lower right area of the abdomen. Its exact position can vary. The base of the appendix is located 2 cm below the ileocecal valve. The length of the appendix can also vary, and its diameter is usually between 6 and 8 mm.
Function[edit | edit source]
The function of the appendix is uncertain. Some studies suggest that the appendix may have a role in the immune system as a place where beneficial bacteria can survive and repopulate the gut after an illness. Other studies suggest that the appendix is a "safe house" for beneficial gut bacteria.
Clinical significance[edit | edit source]
The most common diseases of the appendix (in humans) are appendicitis and carcinoid tumors (appendiceal carcinoid). Appendicitis is a condition characterized by the inflammation of the appendix, which can cause severe abdominal pain and is typically treated by appendectomy, the surgical removal of the appendix.
See also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD