Examples. We could go on and on with great examples of theme, but we won't-I promise. Let's just look at three examples and analyze what gives depth and meaning to these pieces of literature. Take Golding's The Lord of the Flies, for example. We know that Golding taught in a boys' school and later fought in WWII.
The main artery splits into the left pulmonary artery and the right pulmonary artery, each of which directs the blood to the corresponding lung. Along with the umbilical arteries, these are the sole arteries in the body that transport oxygen-depleted blood. The umbilical arteries are located in the uterus.
The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen. The aorta is the main artery that carries oxygen-rich blood from the left side of the heart to the body. The coronary arteries are the other important arteries attached to the heart. They carry oxygen-rich blood from the aorta to the heart muscle, which must have its own blood supply to function.