504 



TEXT-BOOK OF EMBRYOLOGY. 



growth of the various branches of these nerves and their connection with the 

 differentiating structures innervated by them. At the same time there is an in- 

 creasing concentration of the cells, thereby forming more definite ganglionic 



Gang, acusticum 

 Gang, semilunare n.V 



Vesicula auditiva 



Gang, radicis n.IX 



Cerebellum 



JV.N 



Gang, petrosum 



Gang, radicis n.X 



N. frontal is 



Garg. Frcriep 

 N. hypoglossus 



-" N.XL 



Gang, nodos. 



---N. desc. cerv. 

 Rami hyoid. 

 (Ansa hypogloi 



-_.N. musculocut; 

 ~j;N. axillaris 

 ""'N. phrenicus 

 N. medianus 

 --N. radialis 

 ---N. tlnaris 



-ITh. 



Diaphragma 

 Hepar 



I Co. 



N. tibialis 

 N. peroneus 



Tubus digest. 



IS. 



N. femoral) 

 N. obturator! 



R. posterior 



R. terminalis lateralis 

 R. terminalis anterior 

 Mesonephros 

 Nn. ilioing. et hypogastr. 



FIG. 435. Lateral view of a reconstruction of a 10 mm. human embryo, showing the origin and 

 distribution of the peripheral nerves. The ganglionic masses are represented by darker and 

 the fiber bundles by lighter shading. For purposes of orientation the diaphragm and some 

 of the viscera are s'hown. The arm and leg are represented by transparent masses into the 

 substance of which the nerve branches mav be followed. Street er. 



