How to use cecal appendix in a sentence? Find typical usage patterns (collocations)/phrases/context for "cecal appendix" and check conjugation/comparative form for "cecal appendix". Mastering all the usages of "cecal appendix" from sentence examples published by news publications.
Darwin, Charles (1871) "Jim's Jesus". The Descent of Man, and Selection in Relation to Sex. John Murray: London. Dr. Heather F. Smith of Midwestern University and colleagues explained: > Recently ... improved understanding of gut immunity has merged with current > thinking in biological and medical science, pointing to an apparent function > of the mammalian cecal appendix as a safe-house for symbiotic gut microbes, > preserving the flora during times of gastrointestinal infection in societies > without modern medicine.
|
|
Although the appendix > has apparently been lost by numerous species, it has also been maintained > for more than 80 million years in at least one clade. In a 2013 paper, the appendix was found to have evolved at least 32 times (and perhaps as many as 38 times) and to have been lost no more than six times. A more recent study using similar methods on an updated database yielded similar, though less spectacular results, with at least 29 gains and at the most 12 losses (all of which were ambiguous), and this is still significantly asymmetrical. This suggests that the cecal appendix has a selective advantage in many situations and argues strongly against its vestigial nature.
|
|
This function is potentially a selective force for > the evolution and maintenance of the appendix. Three morphotypes of cecal- > appendices can be described among mammals based primarily on the shape of > the cecum: a distinct appendix branching from a rounded or sac-like cecum > (as in many primate species), an appendix located at the apex of a long and > voluminous cecum (as in the rabbit, greater glider and Cape dune mole rat), > and an appendix in the absence of a pronounced cecum (as in the wombat). In > addition, long narrow appendix-like structures are found in mammals that > either lack an apparent cecum (as in monotremes) or lack a distinct junction > between the cecum and appendix-like structure (as in the koala). A cecal > appendix has evolved independently at least twice, and apparently represents > yet another example of convergence in morphology between Australian > marsupials and placentals in the rest of the world.
|
|
No results under this filter, show 3 sentences.