The placenta and fetal tissues. A cooperative enterprise for the synthesis of steroids.
D000311:Adrenal Glands / Q000502:physiology; D004967:Estrogens / Q000096:biosynthesis; D005260:Female; D005333:Fetus / Q000502:physiology*; D006801:Humans; D008099:Liver / Q000502:physiology; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy / Q000502:physiology*; D011284:Pregnenolone / Q000096:biosynthesis; D011374:Progesterone / Q000096:biosynthesis; D013256:Steroids / Q000096:biosynthesis*; D013261:Sterols / Q000096:biosynthesis
D004967:Estrogens; D013256:Steroids; D013261:Sterols; D011374:Progesterone; D011284:Pregnenolone