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Ileum, caecum and colon of rabbit, showing Appendix vermiformis on fully functional caecum The human vermiform appendix on the vestigial caecum. The appendix was once believed to be a vestige of a redundant organ that in ancestral species had digestive functions, much as it still does in extant species in which intestinal flora hydrolyze cellulose and similar indigestible plant materials. [10]
Appendicitis is inflammation of the appendix, a small, potentially vestigial organ that branches off the large intestine. Inflammation is usually a result of some sort of obstruction in the lumen of the appendix, which ultimately leads to infection.
Appendicitis symptoms fall into two categories, typical and atypical. [ 37 ] Typical appendicitis is characterized by a migratory right iliac fossa pain associated with nausea, and anorexia, which can occur with or without vomiting and localized muscle stiffness/ generalized guarding . [ 37 ]
Appendicitis is one of those conditions that you wouldn't wish on your worst enemy. The pains are so excruciating you feel like you're going to die, and if left untreated and your appendix ...
The human appendix averages 9 cm (3.5 in) in length, ranging from 5 to 35 cm (2.0 to 13.8 in). The diameter of the appendix is 6 mm (0.24 in), and more than 6 mm (0.24 in) is considered a thickened or inflamed appendix. The longest appendix ever removed was 26 cm (10 in) long. [3]
Murphy's triad is a collection of three signs and symptoms associated with acute appendicitis, a medical emergency which presents with lower right abdominal pain (Right Lower Quadrant; RLQ), along with nausea, vomiting, and fever.
Rovsing's sign, named after the Danish surgeon Niels Thorkild Rovsing (1862–1927), [1] is a sign of appendicitis.If palpation of the left lower quadrant of a person's abdomen increases the pain felt in the right lower quadrant, the patient is said to have a positive Rovsing's sign and may have appendicitis.
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