And that's exactly why the left lung only consists of two lobes, while our right lung consists of three different lobes. So let's begin with the left lung. We have this upper lobe, also known as our superior lobe, and we have the lower lobe of the left lung, also known as our inferior lobe. And the line, the fissure that separates these two lobes on the left lung is known as the left oblique fissure. Oblique simply means it's at an angle, it's slanted. Now, on the other hand, the right lung, which is slightly larger, consists of three different lobes.