With a simple set of bolt-ons â like an intake, tune, and exhaust â we have no reservations that the EcoBoost will run with a GT, all while being able to achieve 32+ miles per gallon. Weâve seen Focus STâs pick up 30 horsepower and 50 lb/ft of torque to the wheels on just tunes.
The ductus arteriosus connects the pulmonary artery to the aorta, the ductus venosus connects the umbilical vein to the inferior vena cava, and the foramen ovale allows blood to go directly from the right atrium to the left atrium. The pathway of blood through the fetal circulation system is as follows:
Fetal blood is returned from the placenta to the fetus by the umbilical vein. This vein enters the fetal abdomen at the umbilicus and passes cephalad to the posteroinferior surface of the liver as the sinus venosus where it drains into the left portal vein (Fig. 1).After birth, the blood in the umbilical vein clots.Between the second and fifth postnatal days, the umbilical vein is usually completely occluded. After obliteration over the next several months, the umbilical vein becomes the ligamentum teres hepatis, which usually measures between 10 and 20 cm (Fig. 2).BJECTIVE. The objective of our study was to describe the appearance of the remnants of the fetal circulation in adults on MDCT. CONCLUSION. The use of MDCT allows frequent visualization of the remnants of the umbilical vein, ductus venosus, foramen ovale, ductus arteriosus, and umbilical arteries.