Morphogenesis of the fetal membranes and placenta of the black bear, Ursus americanus (Pallas).
D000650:Amnion / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D002335:Carnivora / Q000196:embryology*; D010064:Embryo Implantation; D005321:Extraembryonic Membranes / Q000033:anatomy & histology / Q000098:blood supply / Q000254:growth & development*; D005260:Female; D009024:Morphogenesis; D010920:Placenta / Q000033:anatomy & histology / Q000098:blood supply; D010929:Placentation; D011247:Pregnancy; D014327:Trophoblasts / Q000033:anatomy & histology / Q000254:growth & development; D014817:Vitelline Membrane / Q000033:anatomy & histology / Q000254:growth & development