Structural and functional organization of the placenta from the physiological point of view.
D000818:Animals; D005260:Female; D006801:Humans; D008431:Maternal-Fetal Exchange; D008566:Membranes / Q000033:anatomy & histology / Q000502:physiology; D010539:Permeability; D010920:Placenta / Q000033:anatomy & histology / Q000502:physiology*; D011247:Pregnancy