Surface marking of the oblique fissure of lung include all EXCEPT:
7th rib does not come in the surface marking of oblique fissure. Oblique fissure Passes anteroinferiorly from the spinous process of the T3 veebra to cross the 5th rib in the midaxillary line Fuher continues inferiorly, crossing the 6th rib (and costal cailage) at the mid-clavicular line.
T3 veebra
5th rib
7th rib
6th coastal cailage
Surfaces and Grooves