title: [Development of germ cells in chick ovarian medulla].
abstract: Ovaries from chick embryos and chicken have been investigated with a view to the evolution of germ cells in the medullary. They can enter meiosis and reach pachytene. They seem to be eliminated by the way of the lacunas. Some observations can be utilized in a discussion about the initiation of the meiosis and the evolution of the ovocytes.
mesh_terms: D000375:Aging; D000818:Animals; D002642:Chick Embryo; D002645:Chickens; D005260:Female; D010053:Ovary / Q000196:embryology* / Q000254:growth & development / Q000648:ultrastructure; D010063:Ovum / Q000648:ultrastructure*
vernacular_title: Evolution de la lignée germinale dans la médullaire ovariene du poulet