<prompt> In the costal groove of which of the following ribs is the classic arrangement of vein-aery-nerve is not seen121112  <response>: The classic vein-aery-nerve arrangement is not seen in the 1st rib In the first rib, the arrangement of structures seen medial to lateral are as follows: SVAN Sympathetic trunk Vein intercostal Aerysuperior intercostal Nerve T1 nerve Ref: Grays Anatomy 41st edition Pgno: 943-945 