PATHOLOGY

Detailed explanation-1: -The mediastinum is the partition between the lungs and includes the mediastinal pleura. It is commonly applied to the internal between the two pleural sacs, the sternum and the thoracic vertebral column extending to the diaphragm.

Detailed explanation-2: -The pulmonary loop, or the right side of the heart, is tasked with collecting the oxygen-poor blood and moving it to the lungs for cleaning and reoxygenating. Once reoxygenated, the systemic loop, or the left side of the heart, pumps the high-oxygen blood to the rest of your organs; like the kidneys, liver and brain.