 CONT: When Alison returns to the class after passing out, she  remarks that cadaver had a child in life, due to the dark  pigmentation of the nipples due to breast feeding, and the nipples  shown in the next frame are in fact of dark pigment. However, a few  moments later, when Alison begins her incision, the nipples have  changed back to light pink, such of that of a woman who had not had  a child.