The respiratory system’s key component is the lungs, which serve as the primary site for gas exchange. During respiration, the lungs continuously take in oxygen while removing carbon dioxide from the body. Proper blood supply is essential for optimal lung function, as it not only facilitates gas exchange but is also responsible for nourishing lung tissue. The close relationship between the lung vessels and the heart is crucial for the effective functioning of both the respiratory and circulatory systems. Understanding the blood supply to the lungs is vital for recognizing the importance of maintaining respiratory health. Diseases of the lung vessels can cause serious health issues that affect both breathing…