Metanephric blastema
Carnegie stage	14
Days	35
Precursor	Wolffian duct
Gives rise to	nephron (Bowman's capsule, connecting tubule, distal convoluted tubule, glomerulus, loop of Henle, proximal convoluted tubule), but not collecting duct

The metanephric blastema (or metanephric mesenchyme, or metanephric mesoderm) is one of the two embryological structures that give rise to the kidney (the other is the ureteric bud.)

The metanephric blastema mostly develops into nephrons, but can also form parts of the collecting duct system.

[edit] See also

• Mesenchyme
• Metanephros
• Blastema
• Kidney development

[edit] External links

• Swiss embryology (from UL, UB, and UF) turinary/urinhaute01
• genital-017a — Embryology at UNC
• Diagram at mcgill.ca 1
• Diagram at mcgill.ca 2
• Qiao J, Cohen D, Herzlinger D (1995). "The metanephric blastema differentiates into collecting system and nephron epithelia in vitro.". Development 121 (10): 3207–14. PMID 7588055. 

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v • d • e Prenatal development/mammalian embryogenesis - Development of the urinary and reproductive organs (GA 11.1204) Common Urinary/Reproductive system Cloacal membrane - Cloaca - Urethral groove - Urogenital sinus - Urachus - Urogenital folds Kidney development Nephrogenic cord - Nephrotome - Pronephros - Mesonephros (Mesonephric tubules) Ureteric bud - Metanephric blastema Fetal genital development Primarily internal Gonadal ridge - Sex cord (Cortical cords, Testis cords) Pronephric duct/Wolffian duct/mesonephric duct - Müllerian duct/paramesonephric ducts (Vaginal plate) Primarily external Genital tubercle - Phallus - Labioscrotal folds Gubernaculum - Processus vaginalis Homologues List of homologues of the human reproductive system urinary system navs: anat/physio/dev, noncongen/acid+base/congen/neoplasia, symptoms+signs/eponymous, proc reproductive system navs: anat female,male/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc