Medical Dictionary

urogenital sinus

noun

Medical Definition of UROGENITAL SINUS

:  the ventral part of the embryonic mammalian cloaca that is formed by the growth of a fold dividing the cloaca where the gut and allantois meet and that eventually forms the neck of the bladder and some of the more distal portions of the genitourinary tract

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May 24, 2015
erudite Hear it
learned or pedantic
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