16 EQUINE ANATOMY. 



IVEUROLOGY. 



The study of the nervous system. 



Division. — Composed of two portions, a central or 

 cerebro-spinal, and a peripheric, or the nerves. 



Central portion. — Consists of the spinal marrow, 

 and the encephalon divided into ithsmus, cerebellum 

 and cerebrum. 



Nerves — Form is like fasciculated cords. 



Origin. — By two roots, a superior and an inferior, 

 w^hich, in uniting, present a ganglion. 



Termination. — In Ijranches to the organs of animal 

 life ; and by pairs. j)erfectly alike or symmetrical, to 

 the organs of nutrition, or of vegetable life. 



Structure. — A white substance, a neurilemma, 

 nerve fibres and nerve cells. 



Functions. — They conduct tlie nervous currents, 

 possessing a centripetal current for the superior root, 

 and a centrifuo-al for the inferior one. 



