Integrative Systems 



163 



palpebrae superioris. The oculomotor contains relatively few sen- 

 sory fibers, which are related to proprioceptors situated in the several 

 muscles. Some autonomic motor fibers, derived from cells in the small 



* 6 v. >• 



Fig. 148. Sqaalus acanthias. (A) Outer 

 lateral view of muscles and nerves of 

 right orbit, from which the eye has been 

 removed. (B) Dorsal view of right eye. 

 {ar) Anterior, (ir) inferior (ventral), (pr) 

 posterior, and (sr) superior (dorsal) rectus 

 muscles; {obi) inferior, and (obs) superior 

 oblique muscles; (os) cartilaginous optic 

 stalk; (2) optic nerve; (3) oculomotor 

 nerve; (4) pathetic (trochlear) nerve; (6) 

 abducent nerve. (From Goodrich: 

 "Studies on the Structure and Develop- 

 ment of Vertebrates." By permission of 

 The Macmillan Company, publishers.) 



autonomic ciliary ganglion with which the nerve is connected, pene- 

 trate into the eyeball and supply the internal smooth muscular mecha- 

 nism of the eye. 



