The story of the spiral arteries.
D000715:Anatomy / Q000266:history*; D000818:Animals; D001158:Arteries; D005260:Female; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008131:London; D008253:Macaca mulatta; D010920:Placenta / Q000098:blood supply*; D011247:Pregnancy; D014481:United States; D014599:Uterus / Q000098:blood supply*