THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The chief structures composing the root of each lung are arranged in a similar manner from the front to the back on each side. This means that the upper of the two pulmonary veins are located anteriorly, the pulmonary artery is in the middle, and the bronchus and bronchial vessels are located posteriorly.

Detailed explanation-2: -The posterior border is thick and extends from the C7 to the T10 vertebra, which is also from the apex of the lung to the inferior border. The three surfaces of the lung include the costal, medial, and diaphragmatic surfaces. The costal surface is covered by the costal pleura and is along the sternum and ribs.

Detailed explanation-3: -The right pulmonary artery supplies the right lung while the left pulmonary artery supplies the left lung. The right pulmonary artery courses posterior to the ascending aorta and anterior to the descending aorta. It lies anterior to the right mainstem bronchus.