metanephric blastema


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met·a·neph·ric blas·te·ma

metanephric mass of intermediate mesoderm, metanephric cap.

metanephric blastema

a mass of intermediate mesodermal cells around the distal end of the ureteric bud that gives rise to nephrons in the permanent kidney. Also called metanephric cap, metanephric mass.

met·a·neph·ric mass of mes·o·derm

(met'a-nĕf'rik mas mez'ŏ-dĕrm)
The mesoderm covering the distal end of the metanephric diverticulum; it gives rise to the nephrons in the permanent kidneys.
Synonym(s): metanephric blastema.
References in periodicals archive ?
3,4) From a pathophysiology standpoint, horseshoe kidney occurs during the second and sixth week of gestation when the inferior portion of the metanephric blastema fuses to form an isthmus, commonly in the lower renal pole (90%) and anteriorly to the aorta and vena cava.
These genes code for a variety of transcription and growth factors required for the regulation and orchestration of interactions between the ureteric bud and the metanephric blastema and its predecessor's tissues, the mesonephric and pronephric ducts.
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.