RENAL FUNCTION— MOVER, MORRIS and DE BAKEY 



209 



Left 



Right 



Fig. 10. — Gross effects of occlusion of the aorta above the renal arteries as well as the left 

 renal artery for two hours under hypothermic conditions. When compared to figures 8 and 9, 

 there is relatively little damage to the left kidney of these animals under hypothermia as com- 

 pared to the normothermic animals. 



Left 



Right 



Fig. 11. — Anotlier animal treated as in figure 10. 



different methods. In one group, tlie response to occlusion of the aorta was ob- 

 served. In another group of animals, the effect of occlusion of the renal artery to 

 one kidney was studied. In the third group the effect of occlusion of the renal 

 artery plus the aorta was observed. Collateral circulation and retrograde flow 

 through the inferior aorta was adequate to protect the kidney from damage fol- 

 lowing occlusion of the aorta immediately above the renal arteries. After two 

 hours of occlusion of the renal artery alone, the over-all depression in renal func- 

 tion of that kidney showed about a ^ reduction in glomerular filtration rate and 

 renal blood flow. However, if the renal artery and the aorta were occluded together, 



