THE BRAIN 



l f ia. 42t>. FLAN OF TIIK OKIGIX AND RELATIONS OF THE FIFTH NBKVJ-;. (Cajal, 

 from '' Quain's Anatomy.") 



A, Gasserian ganglion; B, accessory motor nucleus; C, main nucleus; D, seventh 

 nucleus; E, twelfth nucleus; F, sensory nucleus of fifth; G, cerebral trace of 

 fifth; o, ascending branches; b, descending branches of sensory root-fibres; 

 c> d, e, ophthalmic, maxillary, and mandihular branches of fifth. 



