In a standing man, in midaxillary line, lower border of pleura reaches:
Surface marking of pleura"All 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
6th rib
8th rib
10th rib
12th rib