The aorta is usually divided into seven segments/sections:
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Ascending aorta — the section between the heart and the arch of aorta
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Arch of aorta —the peak part that looks somewhat like an inverted "U"
Arch of aorta —the peak part that looks somewhat like an inverted "U"
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Descending aorta —the section from the arch of aorta to the point where it divides into the common iliac arteries.
Descending aorta —the section from the arch of aorta to the point where it divides into the common iliac arteries.
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Abdominal aorta —the half of the descending aorta below the diaphragm.
