386 SPECIAL ANATOMY. 



636. Ramus II. trigemini s. N. maxillaris superior. 



The superior maxillary nerve, in point of size and position in the 

 middle between /. and ///., passes, after a short course, through 

 foram. rotundum into the fossa spheno-maxillaris, where branches 

 pass off from it in all directions, accompanied by branches of art. 

 maxillaris interna. It divides (Arnold) into three principal branches, 

 which correspond to those of the ophthalmicus. 



1. N. subcutaneus mala corresponds to n. lacrymalis, enters 

 the orbita through fissura orbital, infer., passes along the inferior 

 wall forwards, and divides into an ascending ram. lacrymalis, 

 which enters the lacrymal gland from below, anastomoses with n. 

 lacrymal., and gives filaments to the external angle of the eye ; 

 and a horizontal ram. malaris, which passes along through the 

 anterior malar foramen, with a filament for the skin of the cheek, 

 with another (often double) to the anterior part of m. temporalis, 

 and there anastomoses with n. tempor. profund. (See maxillaris 

 inferior.} [A temporal branch also ascends, perforates the outer 

 wall of the orbit, afterwards the temporal fascia, and supplies the 

 skin about the external angular process of the frontal bone]. 



2. N. spheno-palatinus corresponds to n. nasalis, a shorter 

 branch, descends vertically into the fossa spheno-palatina, and en- 

 larges on the outer side of the foramen into the 



Ganglion spheno-palatinum s. rhinicum s. Meckelii. This 

 grayish-red, soft, three to four-cornered nasal ganglion, is 

 larger than the ophthalmic, with which it is frequently in con- 

 nexion by means of a filament (Tiedemann). It consists of 

 two roots ; the short consists of several filaments from nerv. 

 spheno-palatin. ; the long, radix, mollis, that is ram. profun~ 

 dus n. Vidiani, comes from the plexus caroticus n. sympa- 

 thici, is grayish-red, and under n. Vidianus recurrens in a 

 sheath. Two or three filaments pass through fiss. orbitalis 

 infer, into the n. opticus. Through it pass : 

 a. Nn. palatini, descending vertically. They are : 



1. Palatinus anterius s. major, passing through the poste- 

 rior palatine canal, at the inferior orifice of which it in- 

 clines forwards upon the palatine vault. Before that it 

 gives off ram. nasalis inferior, for the middle nasal cham- 

 ber and the inferior concha ; farther, several filaments, 

 which pass upon the internal walls of the antrum High- 

 mori to the last molar teeth ; lastly, a ram. staphylinus 

 for the uvula. Its terminal branches pass on the alveolar 



