42 



MANAGEMENT AND BREEDING OF HORSES 



Thus the horse possessing- a very energetic nervous 

 adaptation may be a very superior animal even though 

 his conformation may not be all that is desired; or the 



FIG. 23.— NERVOUS SYSTEM 



1. Brain 



2. Optic nerve 



3. Superior maxillary nerve 



4. Inferior maxillary nerve 



5. Pneumogastric nerve, front 



6. Spinal cord 



7. Brachial plexus 



8. Prehumeral nerve 



9. Anterior brachial 



10. Radial nerve 



1 1. Cubital nerve 



12. Pneumogastric nerve 



13. Gastric solar plexus 



14. Solar plexus, center' 



15. Sacro lumbar plexus 



16. Anterior femoral and saphena nerves 



17. Sciatic trunk 



18. Small femoral popliteal nerve 



19. Great femoral "popliteal nerve 



20. Posterior internal tibial nerve 



21. Posterior plantar nerve 



22. Internal radial nerve 



23. Anterior plantar nerve 



24. Plantar nerve 



horse of excellent form may be rather inferior because 

 of the lack of nervous application. 



COMMON UNSOUNDNESS AND FAULTS 



The imperfections of the horse may be divided into two 

 general classes — unsoundness and faults. A satisfactory 

 definition of either an unsoundness or a fault is not easily 



