Umbilical cord diameter. This diameter decreases rapidly within the placenta. The fully patent umbilical artery has two main layers: an outer layer consisting of circularly arranged smooth muscle cells and an inner layer which shows rather irregularly and loosely arranged cells embedded in abundant ground substance staining metachromatic. The smooth muscle cells of the layer are rather poorly differentiated, contain only a few tiny myofilaments and are thereby unlikely to contribute actively to the process of post-natal closure. The umbilical cord contains Wharton's jelly, a gelatinous substance made largely from mucopolysaccharides which protects the blood vessels inside. It contains one vein, which
Jewish women in the Holocaust and emotionally. Once labor was over and the baby was born, the women vulnerable to being killed along with their baby. One memoir describes some of the sadistic acts, which were performed among those who were pregnant: "SS men and women amuse themselves by beating pregnant women with clubs and whips, [being] torn by dogs, dragged around by the hair and kicked in the stomach with heavy German boots. Then when [the pregnant Jewish women] collapsed, they were thrown into the crematory-alive." Several Jewish women who wrote their own memoirs reflecting on the Holocaust reported there being a double jeopardy