How many lobes does the left lung have?

The left lung has two lobes, which is correct. This is due to the anatomical structure of the lungs where the left lung is divided into an upper lobe and a lower lobe. The left lung is slightly smaller than the right lung to accommodate the position of the heart, which tilts towards the left side of the thoracic cavity.

In contrast, the right lung consists of three lobes: an upper, middle, and lower lobe. This difference in lobe count between the left and right lungs is a key aspect of pulmonary anatomy and is crucial for medical professionals to understand, especially when considering lung diseases, treatments, and surgical approaches.