MAMMALIA. 215 



FIG. II. 



THE SYMPATHETIC AND OTHER NEEVES IN 

 THE HEAD OF THE CALF. 



(BOS TAURUS.) 



THE head was divided perpendicularly for showing the nerves from the median 

 plane. 



1. Superior cervical ganglion of the sympathetic sending branches upwards to the 



Gasserian ganglion, and others to the surface of the tympanum ; it sends 

 also filaments backwards towards the par vagum, the glosso-pharyngeal and 

 ninth, just at their exit from the cranium. 



2. Otic ganglion communicating with the buccal nerve, and the trunk giving off 



the gustatory and inferior dental nerves, and sending branches to the internal 

 pterygoid muscle, and a branch along the Eustachian tube, where it divides 

 into two, one of which joins the branches of the sympathetic in the tympa- 

 num, and the other terminates on the tympanum. 



3. Optic nerve. 



4. Third nerve. 



5. First trunk of the fifth. 



6. A branch arising from the Gasserian ganglion, near the first trunk of the fifth, 



at the part receiving branches from the superior cervical ganglion of the 

 sympathetic ; it passes into the orbit, and receives a branch from the third 

 nerve to form the ciliary ganglion, from which the ciliary nerves are sent 

 along the .optic nerve into the eye. 



7. Second trunk of the fifth. 



