A text-book of clinical anatomy : for students and practitioners . chest-wall, after death. During life thevisceral and parietal pleurae would be in apposition. RUL, Upper lobe of right , Right lower lobe. LUL, Left upper lobe. LLL, Left lower lobe. An interlobar fis-sure is seen on each side. P, Pleural cavity. Under normal conditions, during life, such acavity does not exist, the parietal and visceral pleurae being in direct contact. AA, Ascend-ing portion of arch of aorta. DA, Descending portion of arch of the aorta. N, Phrenicnerve. 1, Pulmonary artery. 2, Right and left bronchus.
A text-book of clinical anatomy : for students and practitioners . chest-wall, after death. During life thevisceral and parietal pleurae would be in apposition. RUL, Upper lobe of right , Right lower lobe. LUL, Left upper lobe. LLL, Left lower lobe. An interlobar fis-sure is seen on each side. P, Pleural cavity. Under normal conditions, during life, such acavity does not exist, the parietal and visceral pleurae being in direct contact. AA, Ascend-ing portion of arch of aorta. DA, Descending portion of arch of the aorta. N, Phrenicnerve. 1, Pulmonary artery. 2, Right and left bronchus. 3, Pulmonary vein. 4,Esophagus, on either side of which is seen as a white dot the vagus nerve, and to the leftof the esophagus, close to the spinal column, the thoracic duct. Behind the descendingarch of the aorta the sympathetic is seen as a white dot. 5, Internal mammary vessels,at this level lying close to edges of sternum. 6, Pectoralis major muscle. 7, Pectoralisminor muscle. 8, Long thoracic artery and nerve. 9, Teres minor muscle. 10, Infra-spinatus. 171. Fig. 55.—Horizontal section of thorax through ninth dorsal vertebra (fourth rib),showing relations of lungs, pleura, pericardium, and heart. The section also shows thefemale breast displaced further toward the axilla than is normal, due to the mode of prepa-ration (formalin). The black spaces indicating the pleural and the pericardial cavitiesdo not exist during life, as was explained in Fig. 46. LL, Left lower lobe. RL, Rightlower lobe. P, Pleural cavity; under normal conditions, this does not exist during , Right ventricle. LV, Left ventricle. LA, Left auricle. Between the two is seenone of the mitral valves. RA, Right auricle. 1, Phrenic nerve, placed in connectivetissue between mediastinal pleura and parietal pericardium. 2, Descending or thoracicaorta. 3, Vagus nerves. Between the two is seen the esophagus as a flat black area. 4,Sympathetic nerves. The black dot anterior to each represents the venae azyg
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