URACHUS
\jˈʊ͡əɹat͡ʃəs], \jˈʊəɹatʃəs], \j_ˈʊə_ɹ_a_tʃ_ə_s]\
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The urinary canal of the fetus; postnatally it is usually a fibrous cord but occasionally persists as a vesicoumbilical fistula.
By DataStellar Co., Ltd
By William R. Warner
By Henderson, I. F.; Henderson, W. D.
By Willam Alexander Newman Dorland
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In the embryo, a tubular extension of the walls of the urinary bladder toward and in part through the umbilicus to join the allantois; in the human embryo, it does not generally pass beyond the root of the umbilical cord. In the adult, a ligamentous cord resulting from obliteration of the u. of the embryo connecting the bladder with the front wall of the abdomen. [Gr.]
By Smith Ely Jelliffe
Word of the day
Collagen Induced Arthritis
- ARTHRITIS that is induced in experimental animals. Immunological and infectious agents can be used to develop models. These methods include injections of stimulators the immune response, such as an adjuvant (ADJUVANTS, IMMUNOLOGIC) or COLLAGEN.