ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Aortic arch. Coloured angiogram of a section through the torso of a 63-year-old person, showing the healthy supra-aortic trunks, aortic arch (dark) and descending aorta (bright, lower right). Also seen are the normal right brachiocephalic artery and left common carotid artery. However, there are small irregularities visible in the wall of the thoracic aorta.
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