SPINAL NERVES 



739 



Fig. 440.— Diagram showing Paths Traversed by Sensory and Motor Nerve-fibres 

 AND their Course to and from the Cortex of the Brain. 



(Sensory fibres blue ; motor fibres red.) 



LENTICULAR SUCLEUS 



CA UDA TE NUCLEUS 



INTERNAL CAPSULE 



OPTIC THALAMUS 



FORMA TIO 

 RETICULARIS 



TRAPEZIUM — 

 PYRAMIDAL FIBRES 



SUPERIOR PYRAMIDAL 



DECUSSA TION 



ANTERIOR PYRAMID 



TEGMENTUM 



CRUS CEREBRI 

 CRUSTA 



PONS 



NUCLEUS GRACILIS 

 NUCLEUS CUNEA TUS 



MEDULLA 



POSTERIOR PYRAMID 



POSTERIOR CORNU 



DECUSSATION OF PYRAMIDS 



ANTERIOR CORNU 



ANTERIOR PYRAMID 



SPINAL CORD 



LOWER PART OF MEDULLA 



POSTERIOR NERVE-ROOT 



SPINAL GANGLION CELLS 



PERIPHERAL END- 

 ORGAN 

 DIRECT CEREBEL- 

 LAR TRACT 



CROSSED PYRAMI- 

 DAL TRACT 

 PERIPHERAL END- 

 ORGAN 



A NTERO-LA TERA J. 

 A SCENDING TRA L ' T 



MUSCLE 



MUSCLE 



