It usually develops between the fifth and seventh week of fetal development and can only be detected at birth. If you are born with an intestinal bulge, you may have Meckel’s diverticulum.

The blood that enters the fetal circulation divides into two portions under the liver. One portion is transported through the ductus venosus and empties into the Inferior vena cava directly and ...

The ductus arteriosus connects the pulmonary artery to the descending aorta. During fetal life it diverts most of the combined ventricular output away from the lungs toward the placenta.

Meckel’s diverticulum develops around the sixth week of fetal development. The vitelline duct which connects the terminal ileum to the umbilicus is usually wiped out during early fetal life.