NERVUS FACIALIS OF ALBINO MOUSE 



97 



orbit. Anteriorly, the ganglion gradually increases in size, the 

 cells completely surrounding the nerve. This continues until 

 the anterior limit is reached where it ends in a blunt extremity. 

 The posterior half of the ganglion is flattened laterally and is, 

 in cross-section, an elongated oval with the long axis extending 



Fig. 4 Transverse section through the most posterior part of the orbit show- 

 ing the nervus oculomotorius, nervus trochlearis, nervus ophthalmicus, nervus 

 maxillaris, nervus abducens, the posterior part of the ganglion sphenopalatinum 

 and the origin of the nervus palatinus posterior. By referring to figures 7 and 

 8 the connections of the nerve bundles marked with small letters and arable 

 numerals will be seen. Figures 4, 5, and 6 are from the same series. X 90. 



vertically (fig. 5). Near its middle the ganglion changes its 

 shape and becomes flattened dorsoventrally (fig. 6). At this 

 point a ventral bend in the ganglion together with its change in 

 shape imperfectly separates it into a posterior and an anterior 

 part. 



