Representative image of the right common carotid artery. A reader has identified the near and far wall interfaces. The reader has then identified the beginning of the bulb (divergence of the outer wall of the artery) and drawn the interfaces to the right. The lines are color coded and, from the top of the image, are the near wall interfaces: peri-adventitia/adventitia (red), adventitia/media (orange) and intima/lumen (yellow). The far wall interfaces are the lumen/intima (green), media/adventitia (blue), and adventitia/peri-adventitia (pink) interfaces.