Related Experiment Videos
Flexner's Na+ clearances and the histological structure and age of the placenta in various species
1Department of Physiology and Pharmacology, School of Medicine, Oregon Health Sciences University, Portland 97201, USA.
1939 and the early 1940s saw the publication of a remarkable series of papers on placental transfer. For the first time, a group of investigators made a quantitative and systematic study of the transfer of a simple, presumably inert physiological solute, the sodium ion, in a number of different species at various gestational ages. The driving force behind these studies was Louis Barkhouse Flexner.
1939 and the early 1940s saw the publication of a remarkable series of papers on placental transfer. For the first time, a group of investigators made a quantitative and systematic study of the transfer of a simple, presumably inert physiological solute, the sodium ion, in a number of different species at various gestational ages. The driving force behind these studies was Louis Barkhouse Flexner.