Section 128. the Eighth Nerve (auditory) Is Purely Sensory, the Nerve

of the special sense of hearing; it runs into the periotic bone, and breaks up on the labyrinth. The seventh nerve (facial) is almost entirely motor; it passes through the periotic anterior to VIII., and emerges by the stylo-mastoid foramen (s.m.f.) behind the bulla, to run outside the great jaw muscle across the cheek immediately under the skin (Figure 1).