848 



THE NERVOUS SYSTEM OF THE DOG 



Fig. 677. — Base of Brain op Dog. 

 ^1^ 



Optic nerve 



Optic chiasm 



Optic tract 



Hypophysis 



Cerebral peduncle 

 Pons 



Facial nerve 



Acoustic nerve 



Flocculus 



Chorioid plexus of fourth 

 ventricle 



Olfactory bulb 



Olfactory tract 

 Sulcus rhinal'.s 



Fossa lateralis 

 Piriform lobe 

 Oculomotor nerve 



Trochlear nerve 



Trigeminal nerve 

 Abducent nerve 

 Corpus trapezoideum 

 Glosso-pharyngeal nerve 

 Vagus nerve 



Spinal cord Median fissure Pyramid 



Fia. 678.— Key to Fig. 677. 



