470 



MAMMALIA— PHYSIOLOGY 



Table of Cerebral Nerves and Their Components in Mammals 



No. 



I. 



II. 



III. 



IV. 



VI. 



Name 



Olfactory 

 Optic 



Oculo- 

 motor 



Patheticus 

 or Tro- 

 chlearis 



Trigeminal 



Abducens 



Components 



Special viscero- 

 sensory 



Special somatic 

 sensory 



Special somatic 

 motor 



General viscero- 

 motor 



General somatic 

 sensory 



Special somatic 

 motor 



General somatic 

 sensory 



Special viscero- 

 motor 



General somatic 

 sensory A. Ex- 

 teroceptive 



Cells of Origin 



General somatic 

 sensory B. 

 Proprio- 

 ceptive 



Special somatic 

 motor 



General somatic 

 sensory 



Nasal mucous 



membrane 

 Ganglion cells of 



the retina 



III. Nuc. at lev- 

 el of sup. coll. 



Nuc. of Edinger- 

 Westphal 



IV. Nuc. at lev- 

 el inf. coll. 



Motor V nuc. 



Semilunar gan- 

 glion. (Gas- 

 serian g.) 

 Periph. br. to 

 skin, mucous 

 m. of head; 

 central br, to 

 brain 



Mesencephalic 

 V 



VI. Nuc. dors, 

 pons. 



Distribution 



Mitral cells of olfactory bulb. 



External geniculate, pulvinar 

 of thalamus; superior collicu- 

 lus. 



Superior, inferior, internal rec- 

 ti and inferior oblique mus- 

 cles; levator palpebra supe- 

 rior. 



Preganglionic fibers to ciliary 

 ganglion, postganglionic fi- 

 bers to intrinsic muscles of 

 eye. 



Mixed with motor fibers of 

 four muscles. 



Superior oblique muscle. 



Mixed with motor fibers to 

 superior oblique muscles. 



Mandibularis nerve to tempo- 

 ral, masseter, external and 

 internal pterygoid, tensor 

 palati, tensor tympani, ante- 

 rior belly of digastric and 

 mylo-hyoid muscles. 



Ophthalmic, maxillary and 

 mandibular nerves. 



Mixed with motor fibers to 

 masticatory muscles. 



External rectus muscle. 



Mixed with motor fibers to ex- 

 ternal rectus muscle. 





