Studies on the Physiology of the Maternal Placenta in the Rat

摘要: Although a great many investigators have made adequate studies on the maternal placenta from morphogenetic point of view, little attention has so far been given to humoral conditions which make formation materna possible. Experimental investigations problems placental physiology as yet few, and leave unanswered important questions. Which are factors determining life span placenta, what is responsible for its ageing ? In way pregnancy changes influenced by three structures —maternal foetal embryo—present during gestation, role each Recent advances in reproduction it possible attempt elucidation these under unusually favourable conditions. Of importance was observation Leo Loeb that could be produced experimentally rodent. Furthermore, we reported experiments showed embryos removed pregnant rat mouse without interfering with development either or placenta. These facts, together progress past few years female sex hormones general, formed basis our present studies, enabled us elucidate some indicated above.