856. Describe the path of blood through the fetus, starting with oxygenated blood in the placenta / When does the ductus arteriosis close? March 26th, 2009 by reuben in neonate fetal circulation Back Top Tags: card 855. Ways that cardiac disease may present in infants and children / Name 3 fetal circulation structures and their function 857. Major causes of decreased stroke volume in infants & children / Formula for cardiac output and blood pressure / When is cyanosis visible? Who becomes cyanotic first, the anemic or non-anemic patient? Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.