ANATOMY

Detailed explanation-1: -The descending aorta begins at the end of the aortic arch and continues down into the abdomen. There are two parts to the descending aorta. The thoracic aorta runs from the aortic arch to the diaphragm, which is the point of separation between the chest cavity and the abdominal cavity.

Detailed explanation-2: -The aorta divides at approximately the level of vertebra L4 into a left and a right common iliac artery but continues as a small vessel, the median sacral artery, into the sacrum. The common iliac arteries provide blood to the pelvic region and ultimately to the lower limbs.

Detailed explanation-3: -Your descending aorta is the longest part of your aorta, which is the largest artery in your body. It carries oxygen-rich blood from your heart through your chest and abdomen (belly). It also branches off into smaller arteries in many places to supply blood to other parts of your body.

Detailed explanation-4: -The large descending aorta (Fig. 4.30) carries blood to the thorax and abdomen, letting off several intercostal and posterior branches. From the aorta, arteries reach the viscera of the thorax and abdomen as in other mammals.

Detailed explanation-5: -Descending abdominal aortic branches Inferior phrenic arteries supply your diaphragm. Celiac trunk arteries supply organs of your gastrointestinal system, including the stomach, liver, spleen and pancreas. Superior and inferior mesenteric arteries supply your intestines. Renal arteries supply your kidneys.