What does Aorta, descending mean?

Aorta, descending meaning in Medical Dictionary

The descending aorta could be the part of the aorta, the greatest artery in the human body, that operates down through upper body as well as the abdomen. The descending aorta starts following the arch of the aorta and finishes by splitting into two great arteries (the normal iliac arteries) that go towards the legs.