Part one of term paper
Circulatory System in anatomy and physiology. The course taken by the blood through the arteries, capillaries, and veins back to the heart. In humans and the higher vertebrates, the heart is made up of four chambers. The right and left auricles, or atria, and the right and left ventricles. The right side of the heart pumps oxygen poor blo ...

Part two of term paper
... vena cava and the inferior vena cava. When this chamber contracts, blood is forced into the left ventricle and then by ventricular contraction into the aorta. Branching the aorta divides into a number of main branches, which in turn divide into smaller ones until the entire body is supplied by series of blood vessels. Portal circulation in addition to the pulmonary and systematic circulations described above, a subsidery to the venous system exists, known as portal circulation. A certain amount ...