732 



NERVOUS SYSTEM. 



FIG. 231 (A). Cervical and thoracic portion of the sympathetic. (Sappey.) 



1, 1, 1, right pneumogastric ; 2, glosso-pharyngeal ; 3, spinal accessory ; 4, divided trunk of the sublingual ; 

 5, 5, 5, chain of ganglia of the sympathetic ; 6, superior cervical ganglion ; 7, branches from this ganglion to 

 the carotid ; , nerve of Jacobson ; 9, two filaments from the facial, one to the, spheno-palatine and the other 

 to the otic ganglion ; 10, motor oculi externus : 11, ophthalmic ganglion, receiving a motor filament from 

 the motor oculi communis and a sensory filament from the nasal branch of the fifth ; 12, spheno-palahne 

 ganglion; 13, otic ganglion; 14, lingual branch of the fifth nerve; 15, submaxillary ganglion .; 16, 17. 

 superior laryngeal nerve ; 18, external laryngeal nerve ; 19, 20, recurrent laryngeal nerve ; 21, 22, 23, 

 anterior branches of the upper four cervical nerves, sending filaments to the superior cervical sympathetic 

 ganglion ; 24, anterior branches of the, fifth and sixth cervical nerve, sending filaments to the middle, cervical 

 ganglion ; 25, 26, anterior branches of 'the seventh and eighth cervical and the first dorsal nerves, sending fila- 

 ments to the inferior cervical ganglion ; 27, middle cervical ganglion ; 28, cord connecting the two ganglia ; 

 29, inferior cervical ganglion ; 30, 31, filaments connecting this with the middle ganglion ; 32, superior car- 

 diac nerve ; 33, middle cardiac nerve ; 34, inferior cardiac nerve ; 35, 35, cardiac plexus ; 3G, ganglion of 

 the cardiac plexus ; 37, nerve following the right coronary artery; 38, 38, intercostal nerves, ivith their two 

 filaments of communication with the thoracic ganglia ; 39, 40, 41, great splanchnic nerve ; 42, lesser splanchnic 

 nerve ; 43, 43, solar plexus ; 44, left pneumogastfic ; 45. right pneumo<raf?tric ; 46, lower end of the phrenic 

 nerve ; 47, section of the right bronchus ; 48, arch of the aorta ; 49, right auricle ; 50, right ventricle ; 51, 

 52, pulmonary artery ; 53. right half of the stomach ; 54, section of the diaphragm. 



