Lymphatic Glands in Meat-Producing Animals; Their Methodical Examination with Sanitary Inspection as the Viewpoint, Topographical Data and Pathological Alterations Occurring in These Organs (Paperback)

Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: CHAPTER IV Visceral Lymphatic Glands Lungs. To understand the topographic arrangement of the lymphatic glands of the lungs, it is necessary to explain the anatomical relations existing between the bronchial tree and the blood-vessels, factors of the pulmonary hematosis. In dissecting the bronchial disposition of each lung, it may be observed that, after passing the hilus of each organ, the principal bronchia (bronchial trunk, bronchial root) remains straight, and, while its diameter diminishes gradually, it runs backwards parallel with the dorsal border of the organ, remaining at about one-third of the height of the mediastinal face. Only a thickness of four or five centimeters of inflated pulmonary tissue covers it, and it is only at its much reduced extremity that its dichotomic ramification takes place. On the course of this bronchial trunk, a series of primary bronchiae branch off, somewhat regularly, varying according to their a c 3Q a a O o3d 1 Ic rt 133 a B J3 O"3 9 J 2S rf3 IUI M oo aC l-rfqS 3 Arto 3 V "38 8JS o U3" PQ J3a Qj i O4 2O rtHCDat CD )-. 11 ? H Vu3 v 0 HHV 1 H Ph U to s 0ft -1I bo2 Ea a 1 If "o ] 1 a O a 9oi 1?4 jg V(; V uB c od uP Q B a3 o 0 a c rt .fc 3O 5 !! ' in e 1 o, jc q E o X oO01B J co a r Ko Ph o, S V h U'5 0)1J i rt a1"rtft i V a ffi Ph O ijo1 origin, from the external face of the dorsal, ventral and lateral divisions of the principal bronchia. Four dorsal, four ventral and four lateral bron- chise may be counted, the mouths of the dorsal being about opposite those of the ventral, while those of the lateral alternate with the others. Each principal pulmonary vein is laid under the principal bronchia and insid...