The ureteric bud, also known as the metanephric diverticulum,
is a protrusion from the
mesonephric duct during the
development of the urinary and reproductive organs
The development of the urinary system begins during prenatal development, and relates to the development of the urogenital system – both the organs of the urinary system and the sex organs of the reproductive system. The development continues a ...
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Diagram at Nature.com
/ref> It later develops into a conduit for urine drainage from the kidneys, which, in contrast, originate from the metanephric blastema
The metanephrogenic blastema or metanephric blastema (or metanephric mesenchyme, or metanephric mesoderm) is one of the two embryological structures that give rise to the kidney, the other being the ureteric bud.
The metanephric blastema mostly ...
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References
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Embryology of urogenital system