Glomerular development of the kidney was studied in newborn rats by
electron microscopy. Four different stages of glomerular development were
defined: vesicle fonnation, S-shaped body stage, capillary loop fonnation, and
glomerular maturation.
In the fust stage, the mesenchymal cells form a spheroid mass. This is
followed by the S-shaped body stage in which clefts appear in the mass.
Afte...
