FOREIGN BODIES IN THE (ESOPHAGUS OF CATTLE. 



421 



exaggerated ; it is not dangerous to life, and is only occasionally 

 followed by bad results, though some degree of stricture must be 

 expected. Quiet animals, such as cattle, may be operated on in 

 the erect position. After clipping the hair from the left side of the 



Fig. 346.— To illustrate the operation of cesophagotomy. 

 A, oesophagus; B, carotid artery; C, trachea. (Semi-schematic.) 



neck, over the foreign body, and farther below than above this, an 

 incision is made through the skin, about 4 inches in length, on the 

 anterior or under border of the jugular vein, and parallel with it, 

 After dividing the fascia and subscapulo-hyoideus muscle, the loose con- 

 nective tissue encountered must be torn through by means of the 

 two forefingers. The carotid is first sought, and will be immediately 

 recognised by its pulsation. The finger is then passed forward in 

 the direction of the posterior aspect of the trachea, where the 



