NERVUS FACIALIS OF ALBINO MOUSE 



87 



auricular, and palpebral branches were followed to their termina- 

 tion in the muscles. These pass beneath the cutaneous muscle, 

 while the sensory nerves for the supply of the skin of the same 

 regions are superficial to the muscle, an arrangement which 

 makes it possible for the motor nerves to be easily followed. 



Fig. 1 Sagittal section through the nervus facialis and the nervus interme- 

 dius close to the surface of the pons. Figures 1, 2,3, and 9 are from the same series. 

 X 166. 



In the upper lip and in the eyelids the branches of the facial 

 nerve are intermingled with those of the trigeminal nerve. This 

 is particularly true around the roots of the vibrissae in the upper 

 lip where the trigeminal fibers are exceedingly numerous (Vin- 

 cent, '13). Some of the bundles of facial fibers were followed 

 through this plexiform mass in each of these regions and w^ere 

 found to terminate in muscular tissue. 



