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ANGIOLOGY 



The lymphatic vessels of the thoracic viscera comprise those of the heart an 

 pericardium, lungs and pleura, thymus, and esophagus. 



The Lymphatic Vessels of the Heart consist of two plexuses: (a) deep, immediately 

 under the endocardium; and (6) superficial, subjacent to the visceral pericardium. 

 The deep plexus opens into the superficial, the efferents of which form right and 

 left collecting trunks. The left trunks, two or three in number, ascend in the anterior 

 longitudinal sulcus, receiving, in their course, vessels from both ventricles. On 

 reaching the coronary sulcus they are joined by a large trunk from the diaphragmatic 

 surface of the heart, and then unite 'to form a single vessel which ascends between 

 the pulmonary artery and the left atrium and ends in one of the tracheobronchial 





L. recurrent nerve 

 Paratracheal glands 



R. recurrent nerve 



Paratracheal glands 

 Innominate artery 



L. tracheobronchial 

 glands 



L. 'bronchopulmo- 

 nary glands 



R. tracheobronchial 

 glands 



R. bronchopulmo- 

 nary glands 



FIG. 622. The tracheobronchial lymph glands. (From a figure designed by M. Hall6.) 



glands. The right trunk receives its afferents from the right atrium and from the 

 right border and diaphragmatic surface of the right ventricle. It ascends in the 

 posterior longitudinal sulcus and then runs forward in the coronary sulcus, and 

 passes up behind the pulmonary artery, to end in one of the tracheobronchial 

 glands. 



The Lymphatic Vessels of the Lungs originate in two plexuses, a superficial and a 

 deep. The superficial plexus is placed beneath the pulmonary pleura. The deep 

 accompanies the branches of the pulmonary vessels and the ramifications of the 

 bronchi. In the case of the larger bronchi the deep plexus consists of two net- works 

 one, submucous, beneath the mucous membrane, and another, peribronchial, 

 outside the walls of the bronchi. In the smaller bronchi there is but a single plexus, 

 which extends as far as the bronchioles, but fails to reach the alveoli, in the walls 



