How many lobes are there in the human lung?

The human lungs consist of a total of five lobes, divided into the left and right lungs. The right lung has three lobes: the upper, middle, and lower lobes, while the left lung has two lobes: the upper and lower lobes. This structural arrangement allows for efficient gas exchange and fits the anatomical design, as the left lung is slightly smaller to accommodate the heart. Understanding the division of the lungs into lobes is essential in anatomy and physiology, as it relates to how respiratory diseases may impact lung function and health.