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.
The umbilical arteries are the direct continuation of the internal iliac arteries. A catheter passed into an umbilical artery will usually enter the aorta via the internal iliac artery. Occasionally the UAC will pass into the femoral artery via the external iliac artery or into the gluteal. arteries. The femoral artery or gluteal artery, are unsuitable sites for sampling, infusion or blood. pressure.