690 



TRIGEMINAL NERVE. 



FIG. 243. Semidiagrammatic Representation of the Ocular Nerves, the Connections of the Trigeminus and Its 

 Ganglia and Those of the Facial and Glossopharyngeal Nerves: 3, branch to the inferior oblique muscle 

 (Oi) from the oculomotor nerve, with the thick, short root to the ciliary ganglion (c); t, ciliary nerves; 1, long 

 root to the ganglion from the nasociliary nerve (nc); s, sympathetic root from the plexus of the sympathetic 

 (Sy) surrounding the internal carotid artery (G); d, first division of the trigeminus (5), with the nasociliary 

 nerve (nc) and the terminal branches of the lacrimal (a), supraorbital (b) and frontal (f); e, second division 

 of the trigeminus; R, infraorbital nerve; n, sphenopalatine ganglion, with the roots (j) from the facial, and 

 (v) from the sympathetic; N, the nasal branches p p, the palatal branches of the ganglia; g, third division 

 of the trigeminus, k lingual nerve; i i, chorda tympani; m, otic ganglion wth the moots from the tympanic 

 plexus, the carotid plexus, and from the third division, and with its branches to the auriculotemporal (A) 

 and the chorda (i i); L, submaxillary ganglion, with the roots from the tympanicplingual and the sympathetic 

 plexus of the external maxillary artery (q). 7, Facial nerve j, its greater superficial petrosal nerve; a, genicu- 

 late ganglion; /3, branch to the tympanic plexus; y. stapedius branch; 8, anastomoses with the auricular 

 branch of the vagus, s, Stylomastoid foramen. 9, Glossopharyngeal nerve -A., its tympanic branch; TT and 

 e, connections with the facial; U, termination of the gustatory fibers of the ninth nerve in the circumvallate 

 papillae. Sy, Sympathetic, with (Cg S) the superior cervical ganglion. I, II, III, IV, the four upper cervical 

 nerves. P, Parotid gland; M, submaxillary gland. 



