intravenous injections of the quaternary dipyridlium salt paraquat ( 14c-labelled ) dissolved in solutions of low tonicity result in a high uptake in the erythrocytes and concomitantly also in the spleen ( red pulp ) , the latter being probably due to phagocytosis of paraquat-containing erythrocytes by the reticuloendothelial system .
C0037993
spleen
C0229687
red pulp