Which lung has a middle lobe?

The right lung features a middle lobe, while the left lung is composed of only two lobes: the upper and lower lobes. The anatomy of the lungs is significant as it reflects their functional requirements and structural adaptation to physiological needs. The right lung is larger and shorter than the left due to the positioning of the heart, which has a notable influence on the lung structure.

Specifically, the right lung has three lobes: an upper lobe, a middle lobe, and a lower lobe, separated by two fissures: the horizontal fissure and the oblique fissure. The middle lobe is positioned between the upper and lower lobes, facilitating efficient airflow and gas exchange. This lobe plays an integral role in lung function, and its presence in the right lung is essential for the overall respiratory capacity.

The left lung, on the other hand, lacks this anatomical feature, illustrating the differences in lung structure between the two sides and emphasizing the right lung's unique middle lobe.