Notes on the smooth dogfish, Mustelus canis, during the first three months of gestation. II. Structural modifications of yolk-sacs and yolk-stalks correlated with increasing absorptive function.
D004284:Dogfish; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D005321:Extraembryonic Membranes; D006801:Humans; D014816:Vitelline Duct; D015017:Yolk Sac
EMBRYO; FETAL MEMBRANES