[Development of glomerular capillaries of the definitive kidney in the prenatal ontogenesis of man].

The morphology of development of the glomerular capillaries in the human definitive kidney has been studied during prenatal ontogenesis. They are laid down in two ways: in the renal corpuscule rudiment from the migrated angioblasts and by ingrowth of the capillaries from the precapillary branchings of afferent arterioles into the nondifferentiated aggregate of nephrogenic cells. Both types of glomerulogenesis are observed after the afferent arterioles reach the corpuscule rudiments.