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circulatory system
abdominal aorta The Abdominal aorta is the longest section of the aorta, beginning at the diaphragm and spanning the abdominal cavity. The Thoracic and abdominal aorta together make up the descending aorta.
blood travels from the ascending aorta to the aortic arch to the descending aorta
Ascending aorta, arch of aorta and the descending aorta are located in your thoracic cavity.
The ascending aorta extends from the aortic root (which connects the aorta to the heart), upwards toward the aortic arch. The thoracic aorta is one of two parts of the descending aorta, which extends back down towards the abdomen after the aortic arch. The thoracic aorta is the part of the descending aorta that is above the diaphragm, while the abdominal aorta is below the diaphragm.
descending aorta
descending aorta
abdominal aorta is the portion of the descending aorta inferior to the diaphragm. it passes thru a hole in the diaphragm called aortic hiatus
descending aorta
The descending aorta.The aorta is divided in ascending, aortic arch, descending, thoracic, and abdominal.
The aorta is part of the circulatory system. It is the largest artery in the body and leads from the heart down through the abdomen and splits into smaller blood vessels that feed the lower half of the body (such as the femoral arteries).
If you are talking about where does the blood inside the descending aorta come from, it comes from the aortic arch, which comes from the ascending aorta. If you are talking about the blood that nourishes the tissues of the aorta, it is the vasa vasorum.