1 Electromagnetic coil, formed when a conductor is wound around a core or form to create an inductor or electromagnet.  Ignition coil, an electromagnetic induction coil used in internal combustion engines to create a pulse of high voltage for a spark plug.
systemic circulation the general circulation, carrying oxygenated blood from the left ventricle to the body tissues, and returning venous blood to the right atrium. umbilical circulation fetal circulation through the umbilical vessels. vitelline circulation the circulation through the blood vessels of the yolk sac.
An umbilical cord is a thick, blood-rich cord that connects a baby to its mother during the gestation process. Fetuses with a single umbilical artery may be monitored closely during gestation, contractions and birth. A single umbilical artery is an abnormality that may be detected during a pre-natal ultrasound. The umbilical artery carries blood and nutrients to the fetus of a pregnant woman.