<prompt> Different organs receive different amounts of cardiac output. The organ with MAXIMUM blood flow in mlkgmin is:KidneyLiverBrainLung  <response>: The kidneys receive 20-25 of the cardiac output. They receive the highest blood flow per gram of organ weight in the body i.e, 400 mLmin 100 gm. This is several times greater per unit weight of organ than the blood flow through most other organs. Ref: Radiological Imaging of the Kidney edited by Emilio Quaia, 2011, Page 24. 