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PHYSIOLOGY. 



Nervous fibres, deprived of their neurilema and unravelled, showing 

 the smaller threads, or filaments, of which the fibres consist. 



30. The nervous tissue is also abundantly supplied with 

 blood-vessels, like the muscular ; so that there is not a fibre 

 or filament, howev.er minute, which is not supplied by a dis- 

 tinct blood-vessel./ /The nervous structure forms the brain, 



