Metanephric Diverticulum

**Semantic type:** Embryonic Structure

**Definition:** An outgrowth arising from each mesonephric duct during the 5th week of embryonic development, which gives rise to the renal collecting ducts, calyces, pelvis and ureters, and, together with the metanephric blastema, will give rise to the permanent kidney.

**Synonyms:** - Ureteric Bud