Descending thoracic aorta
The aorta is an artery that conveys oxygenated blood from the heart to other parts of the body. It is one of the largest arteries in the body. The aorta gives off several paired branches as it descends. In descending order, these include the
Superior pancreaticoduodenal artery
At 42 letters, the posterior superior pancreaticoduodenal artery is also the artery with the longest name in the human body.