Definition: The word "aorta" refers to a flexible blood vessel located in the lower part of the body, often called the heart's main artery. It carries oxygenated blood from the lungs to all parts of the body. Aorta anatomy includes two main segments: the descending aorta (also known as the femoral aorta) and the ascending aorta (also called the brachiocephalic aorta). The ascending aorta is responsible for transporting most of the blood flow from the lower extremities to the heart. The term "aortas" comes from the Latin word "arota," which means "garden." In Christian mythology, it was believed that these vessels would have grown around a garden and eventually become part of the human body.