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  2. Human vestigiality - Wikipedia

    en.wikipedia.org/wiki/Human_vestigiality

    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]

  3. Robert Wiedersheim - Wikipedia

    en.wikipedia.org/wiki/Robert_Wiedersheim

    The young Robert Ernst Eduard Wiedersheim, probably in early 1874 by Alfredo Noack in Genoa. [1]Robert Ernst Eduard Wiedersheim (21 April 1848 – 12 July 1923) was a German anatomist who is famous for publishing a list of 86 "vestigial organs" in his book The Structure of Man: An Index to His Past History.

  4. Kidney - Wikipedia

    en.wikipedia.org/wiki/Kidney

    In humans, the kidneys are two reddish-brown bean-shaped blood-filtering organs [1] that are a multilobar, multipapillary form of mammalian kidneys, usually without signs of external lobulation. [ 2 ] [ 3 ] They are located on the left and right in the retroperitoneal space , and in adult humans are about 12 centimetres ( 4 + 1 ⁄ 2 inches) in ...

  5. Vestigiality - Wikipedia

    en.wikipedia.org/wiki/Vestigiality

    The Structure of Man contained a list of 86 human organs that Wiedersheim described as, "Organs having become wholly or in part functionless, some appearing in the Embryo alone, others present during Life constantly or inconstantly. For the greater part Organs which may be rightly termed Vestigial."

  6. Appendix (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Appendix_(anatomy)

    This suggests that the cecal appendix has a selective advantage in many situations and argues strongly against its vestigial nature. Given that this organ may have a selective advantage in numerous situations, it appears to be associated with greater maximal longevity, for a given body mass. [32]

  7. Why do we have useless body parts? - AOL

    www.aol.com/news/2014-08-14-why-do-we-have...

    Humans have many vestigial body parts that may have been useful for our ancestors but are obsolete for us. Useless body parts explained: Show comments. Advertisement. Advertisement.

  8. Category:Vestigial organs - Wikipedia

    en.wikipedia.org/wiki/Category:Vestigial_organs

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  9. Abdominopelvic cavity - Wikipedia

    en.wikipedia.org/wiki/Abdominopelvic_cavity

    Anatomists and medical professionals have traditionally considered the appendix a vestigial organ. Later research suggests that it may have an immunological function. [13] On the dorsal aspect of the abdominal cavity, there are two bean-shaped organs. These are the left and right kidneys. The kidneys filter the blood and urine.

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