. Cunningham's Text-book of anatomy. Anatomy. 1086 THE KESPIKATOKY SYSTEM. pleural reflection; whilst inferiorly it becomes continuous with the diaphrag- matic pleura, of its own side, at the base of the pericardium. Above the root of the lung the mediastinal pleura passes directly from the sternum to the vertebral column. In this region the left mediastinal 'pleura is applied to the arch of the aorta and the phrenic and vagus nerves; to the left innominate vein, the left superior intercostal vein and the left common carotid and left subclavian arteries; to the oesophagus and the thoracic duct
. Cunningham's Text-book of anatomy. Anatomy. 1086 THE KESPIKATOKY SYSTEM. pleural reflection; whilst inferiorly it becomes continuous with the diaphrag- matic pleura, of its own side, at the base of the pericardium. Above the root of the lung the mediastinal pleura passes directly from the sternum to the vertebral column. In this region the left mediastinal 'pleura is applied to the arch of the aorta and the phrenic and vagus nerves; to the left innominate vein, the left superior intercostal vein and the left common carotid and left subclavian arteries; to the oesophagus and the thoracic duct. The right mediastinal pleura, on the other hand, is applied, above the root of the lung, to the superior part of the vena cava superior and the right innominate vein; to the innominate artery; to the vena azygos, as it hooks forwards above the bronchus; to the vagus and phrenic nerves; and to the right side of the trachea. Opposite the root of the lung, as well as in the region below it, the mediastinal pleura clothes the corresponding aspect of the pericardium (pleura pericardiaca), and is somewhat firmly attached to it. As the phrenic nerve passes downwards upon the pericardium it likewise is covered over by the pleura. In the region correspond- ing to the superior part of the lateral aspect of the pericardium the mediastinal pleura is prolonged laterally, so as to form an invest- ment for the root of the lung, and becomes continuous around the hilus of the lung with the pul- monary pleura. Below the root of the lung the two layers of pleura which invest it come into apposi- tion with each other, and are pro- longed downwards as a distinct fold, termed the ligamentum pul- monale. This fold stretches be- tween the pericardium and the inferior part of the mediastinal surface of the lung, and ends in- feriorly in a free border. Dorsal to the root of the lung Fig. 864.—Lateral View op the Right Pleural Sac in and the ligamentum pulmonale a Subject hardened by Formalin Injecti
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
