ureteral bud

ureteric bud, ureteral bud

see metanephric diverticulum.
References in periodicals archive ?
The ureteral bud originates from the caudal end of the mesonephric duct at approximately gestational week 4, and proper interaction between the mesonephric duct and urogenital sinus results in the correct anatomical placement of the ureteral orifice on the bladder trigone.
The ureteral bud arises from the dorsal aspect of the distal mesonephric duct, which extends in a dorsocranial fashion to meet and induce differentiation of the metanephric blastema.
4) The mechanism of development is similar to that of renal dysplasia in which the abnormality develops at the juncture of the mesonephnc duct derivative, the ureteral bud, with the metanephrogenic mesenchyme.
Moreover, it is well-demonstrated that if an embryological insult occurs before 7 weeks' gestation, when the ureteral bud separates from the mesonephric duct, SV agenesis may be associated with renal agenesis.
The embryologic genesis of multiple pelvises is best described by one ureteral bud arising at the 5th week of embryological life from the mesonephric duct.
As a result of the interaction between the ureteral bud and the mesonephric duct during embryogenesis, many associated anomalies were observed.
Ectopic ureters are always associated with a duplicated system--two ureteral buds exit from the mesonephric duct, and one ends up positioned ectopically.
Throughout the embryonic development, 2 ureteral buds rarely develop separately from a single mesonephric duct, giving rise to a duplex kidney with ureteral duplication.