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urachus
urachus (ˈjuːrəkəs) n (Pathology) a cord of tissue connecting a fetus's bladder to the umbilical cordurachus
urachus[′yu̇r·ə·kəs] (embryology) A cord or tube of epithelium connecting the apex of the urinary bladder with the allantois; its connective tissue forms the median umbilical ligament. urachus
urachus [u´rah-kus] a fetal canal connecting the bladder with the allantois, persisting throughout life as a cord (median umbilical ligament). adj., adj u´rachal.patent urachus a condition in which the urachus remains a hollow tube connecting the bladder and the umbilicus, resulting in an umbilical urinary fistula.u·ra·chus (yūr'ă-kŭs), That part of the allantois between the apex of the bladder and the umbilicus; postnatally, the urachus is normally merely a fibrous cord, the median umbilical ligament, but occasionally the allantoic lumen may persist as a urachal fistula. [G. ourachos, the urinary canal of a fetus] urachus A vestigial structure located at the bladder apex which connects the bladder with the allantois in the embryo. The lumen of the urachus may persist in one-third of adults and traverse the bladder wall as a tubular or cystic structure of little clinical significance.ura·chus (yūr'ă-kŭs) That portion of the allantois between the apex of the bladder and the umbilicus; becomes the median umbilical ligament. [G. ourachos, the urinary canal of a fetus]urachus A primitive structure in the embryo from which the bladder develops. Later it is represented by a fibrous cord that extends from the top of the bladder to the UMBILICUS. |