The guinea-pig placenta.
D000818:Animals; D001158:Arteries; D002196:Capillaries; D005260:Female; D006168:Guinea Pigs / Q000033:anatomy & histology*; D006651:Histocytochemistry; D006801:Humans; D008431:Maternal-Fetal Exchange; D009024:Morphogenesis; D010920:Placenta / Q000033:anatomy & histology* / Q000098:blood supply / Q000648:ultrastructure; D011247:Pregnancy; D012039:Regional Blood Flow; D013997:Time Factors; D014680:Veins; D014817:Vitelline Membrane / Q000648:ultrastructure