<prompt> In a standing man, in midaxillary line, lower border of pleura reaches:6th rib8th rib10th rib12th rib  <response>: Surface marking of pleuraAll the even ribs, in order: 2, 4, 6, 8, 10, 12 show its route:Rib2: Sharp angle inferiorlyRib4: The left pleura does a lateral shift to accommodate heaRib6: Both diverge laterallyRib8: Midclavicular lineRib10: Midaxillary lineRib12: The back 