402 



PHYSIOLOGY 



CHAP. 



as the principal nerve of taste, but asserted that the lingual branch 

 of the trigeminal possessed the same function. Alcock (1839), in 



FIG. 212. Distribution and connections of vagus nerve on left side in neck and upper part of 

 thorax. (Sappey, from Hirschfeld nd Leveille.) i. 1, vagus nerve ; 2, ganglion of its trunk ; 

 3, bulbar part of accessory ; 4, union of vagus with hypoglossal ; 5, phary ngeal branch of vagus ; 

 li, superior laryngeal nerve ; 7, external laryngeal ; 8, communication of external laryngeal 

 nerve with superior cardiac branch of sympathetic ; 9, recurrent or inferior laryngeal ; 10, 

 superior, and 11, inferior cervical cardiac branches; 12, 13, posterior pulmonary plexus; 14, 

 lingual branch of mandibular nerve ; 15, distal part of hypoglossal nerve ; 16, glosso-pharyngeal 

 nerve ; 17, accessory nerve, uniting by its inner branch with the vagus, and by its outer passing 

 into the sterno-mastoid muscle ; 18, 2nd, 19, 3rd and 20, 4th cervical nerves ; 21, origin of phrenic 

 nerve ; 22, 23, 5th, 6th, 7th, 8th cervical nerves, forming with the 1st thoracic the brachial 

 plexus ; 24, superior cervical ganglion of sympathetic ; 25, middle cervical ganglion ; 26, inferior 

 cervical ganglion united with 1st thoracic ganglion ; 27, 28, 29, 30, 2nd, 3rd, 4th, and 5th 

 thoracic ganglia. 



% 



an important series of experiments, maintained that the gustatory 

 fibres run in the glosso-pharyngeal and the lingual and palatine 

 branches of the trigeminus, and that the spheno-palatine ganglion 



