An electron microscopic visualization of transport across rat visceral yolk sac.
D000818:Animals; D001692:Biological Transport; D004847:Epithelial Cells; D005260:Female; D005293:Ferritins / Q000378:metabolism; D008431:Maternal-Fetal Exchange; D008854:Microscopy, Electron; D010920:Placenta / Q000166:cytology* / Q000502:physiology*; D011247:Pregnancy; D011270:Pregnancy, Animal; D051381:Rats
D005293:Ferritins