Important Fetal Organs. The outer ears begin to take shape. In the adult the cardiovascular system includes an.
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Duration of symptoms can vary as well. Unlike later feces, meconium is composed of materials ingested during the time the infant spends in the uterus (intestinal. The fetal circulatory system includes three shunts to divert blood from undeveloped and partially functioning organs, as well as blood supply to and from the placenta.