Although there are many ingredients used to make glue, most formulas contain something called polymers. A polymer is a large molecule that often is described as being a long molecular strand, much like spaghetti.
The pulmonary artery carries deoxygenated blood from the heart to the lungs. It is one of the only arteries (other than the umbilical arteries in the fetus) that carries deoxygenated blood.
What is a pulmonary artery? Pulmonary artery is one of the two vessels branching from the pulmonary trunk is an integral part of the whole heart anatomy and is the vessel that transports de-oxygenated blood to the lungs coming from the right ventricles. The right pulmonary artery is longer of the two arteries.