<prompt> The surface marking of the arch of aorta is as follows -Behind the manubrium sterni2nd intercostal space3rd intercostal spaceLeft 2nd costal cartilage  <response>: Arch of Aorta surface markingRight end of sternal angleCentre of manubrium sterniSternal end of left second costal cartilageThese points when connected lies behind the lower half of manubrium sterni. 