Analyse expérimentale de la régulation cardiaque sur l’embryon de poulet

Abstract

Homochronous homografts of prospective cardiac area labeled with ³H thymidine have been carried out in chicken embryos at stages 5 and 6 of Hamburger and Hamilton. It has been observed how a heart tube or a vesicle, sometimes contractile, is developed by the graft. This vesicle, which is partly joined or not joined, to the receptor’s heart, is always in close dependence on the pharynx normogenesis.