Prostaglandins normally dilate the afferent arterioles of the glomeruli. Diseases of the nephron predominantly affect either the glomeruli or the tubules. Characteristic is the presence of abortive tubules and glomeruli surrounded by a spindled cell stroma. Some diseases of the nephron predominantly affect either the glomeruli or the tubules. The efferent arterioles of the undifferentiated cortical glomeruli are the most complex. The contacts between mossy fibers and granule cell dendrites take place within structures called glomeruli. The efferent arterioles of the juxtamedullary glomeruli are much different. The anti-GBM antibodies attack the alveoli and glomeruli basement membranes. The rest are simply undifferentiated cortical glomeruli. It is a type of glomerulonephritis in which the glomeruli become inflamed. It is characterized by nephrotic syndrome and diffuse scarring of the glomeruli. Glomerulopathy is a set of diseases affecting the glomeruli of the nephron. Focal segmental glomerulosclerosis is characterised by a sclerosis of segments of some glomeruli. The odor map begins processing of olfactory information by spatially organizing the glomeruli. The amount of the proteinuria reflects the degree of damage to any still-functioning glomeruli.