ABSTRACT
The kidneys removed from six female adult dogs were injected through the renal artery with ABS at a constant pressure between 33.3—33.7 kPa(250—280mmHg). Small specimens cut out from the kindneys were digested in 3％ trypsin solution for 48 hours and then eroded in 50％ HCl. The cast specimens were studied under the scanning electron microscope. The results were outlined as follows: 1. The corrosion-cast models of the renal glomerulus of the dogs observed under the SEM could be divided into three kinds: the spherical glomerulus, the chrysanthemum-like glomerulus and mixed glomerulus. 2. In general, the afferent and efferent arteriolae entered or exited at the hilum of glomerulus. Rarely, the efferent vessel left the glomerulus at the opposite side of the hilum. Anastomoses between the afferent and efferent or between the efferents vessels were found in our casts. 3. The capillary network of the juxtaglomerular apparatus was observed at the hilum of glomerulus in our casts. The diameters of the meshes of the capillary network were smaller than that of the vessels themselves.
