MAMMALIA. 



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and terminates on the membrane of the glottis, the epiglottis, and the superior part of 

 the larynx, and communicates with branches of the recurrent, after which this nerve 

 terminates on the muscles of the glottis. In the jaguar, the enlargement is situated 

 much lower down than in the pig and other animals ; the larynx is also placed lower 

 in the same degree ; the laryngeal nerve arising from it gives branches to the pharynx 

 and crico-thyroideal muscle, before it passes to the glottis. The course of the par 

 vagum through the neck is very similar to that in man ; but in many instances, as the 

 calf, sheep, dog, and jaguar, the prolongation of the sympathetic from the first cervical 

 ganglion adheres to it, and in the calf forms communications with it ; but in the rabbit, 

 hedge-hog, and others, the sympathetic is generally separate from it : it is so in some 

 species of the baboon and monkey, if a partial adhesion a little below the superior 

 cervical ganglion be excepted. In the jaguar, after the sympathetic has left the right 

 trunk at the bottom of the neck, it communicates with the inferior cervical and first 

 thoracic ganglia, and gives off some branches to the heart, and sends the recurrent 

 round the subclavian artery, which, as well as that on the left side, communicates very 

 much with the cardiac nerves before it passes up to the larynx ; the trunk then gives 

 filaments to the trachea, and passes to the back of the lungs, where it gives off the 

 pulmonary plexus, which communicates with the thoracic plexus as in man ; it then 

 sends off a branch to be joined by one from the left trunk to form the anterior cord 

 which gives filaments to the lungs, and one to the right auricle, and the termination of 

 the inferior vena cava; it sends off a large branch to join the posterior cord; the 

 anterior cord then passes through the diaphragm, and terminates on the anterior 

 surface of the stomach ; some of its branches communicating with branches of the 

 sympathetic accompanying ramifications of the cceliac artery. The left trunk, after it 

 has given off the sympathetic, sends the recurrent round the arch of the aorta to com- 

 municate very much with the cardiac nerves before it passes up to the larynx ; the 

 trunk gives off several cardiac branches, and a large branch to join the anterior cord ; 

 the rest of it is then joined by a large branch of the right trunk to form the posterior 

 cord, and pass through the diaphragm to give branches to the cceliac plexus and to 

 the broad extremity of the stomach, and then terminate by distributing branches on the 



