An epithelial swelling on the Wolffian duct that elongates to invade the adjacent metanephric mesenchyme[MP] [ PMID:19828308 MP:0010979 ]
术语信息
- EHDAA:5917
- BTO:0001646
- EMAPA:17209
- VHOG:0000541
- Wikipedia:Ureteric_bud
- UMLS:C1284058 (ncithesaurus:Metanephric_Diverticulum)
- SCTID:361528000
- EHDAA:3091
- NCIT:C34207
- EHDAA2:0002140
pheno_slim
Outgrowth of the mesonephric duct that penetrates the metanephric mesoderm and forms the ureter, renal pelvis, major and minor calyces and collecting ducts[VHOG:0000541].
Outgrowth of the mesonephric duct that penetrates the metanephric mesoderm and forms the ureter, renal pelvis, major and minor calyces and collecting ducts. [Embryology, See_Dudek_RW_and_Fix_JD, Third_Edition_(2004)_Philadelphia:_Lippincott_William_and_Wilkins, p.137][VHOG]
The first embryonic hint of a metanephros is the formation of the metanephric duct that appears as a ureteric diverticulum arising at the base of preexisting mesonephric duct. The ureteric diverticulum grows dorsally into the posterior region of the nephric ridge. Here it enlarges and stimulates the growth of metanephric tubules that come to make up the metanephric kidney. The metanephros becomes the adult kidney of amniotes, and the metanephric duct is usually called the ureter.[well established][VHOG]
An epithelial swelling on the Wolffian duct that elongates to invade the adjacent metanephric mesenchyme[MP]
metanephric diverticulum
metanephric bud
diverticulum
ureteric ampulla
gemma ureterica
ureteric diverticulum
diverticulum metanephricum