212 Mammalia. 



brandies of the Portio dura of tte seventh nerve, the motor 

 nerve of the face ; consequently, generally known as the 

 Facial Nerve. The larger, and superior, of these two branches, 

 emerging upwards and forwards through the Parotid Gland, 

 and crossing the ramus of the jaw just below the neck of the 

 condyle, is the Temporo -facial branchf. The other division, 

 emerging obliquely downwards and forwards through the 

 Parotid Gland, and dividing opposite the angle of the jaw 

 into branches which are distributed on the lower part of the 

 face and upper part of the neck, is the Cervico- facial branch. 



The Student should next continue tracing the Facial Nerve 

 further down in the substance of the Gland, and only just a 

 quarter of an inch beyond the junction of the Cervico- 

 temporal and Cervico-facial branches, and on the opposite 

 side of the Cervico-temporal to that on which the Cervico- 

 facial was found, he will come upon a nerve twig passing from 

 the main stem just below the Ear, and curving round and 

 upwards to reach the surface between the posterior margin of 

 the orbit and the knob of muscle above the Ear which fills 

 the Temporal fossa, above noted as the Temporalis or Temporo- 

 maxillaris muscle : this is the Auricular branch of the Facial 

 JNFerve. 



By continuing the dissection of the main nerve stem a 

 bare eighth of an inch further into the Gland, the Facial 

 Nerve will be traced down to its exit from the Skull, through 

 the Stylo-mastoid foramen. 



Secondly, he should trace the fine nerves near the top of 

 the gland, in front of the Ear ; these will be found to run 

 forwards towards the angle of the mouth, and backwards, 

 united, within the Parotid Gland, or rather between it and the 

 internal layer of muscle, and not penetrating the substance of 



t This nerve will be seen to be connected with the auriculo- temporal nerve, 

 to be described below, as it crosses the ramus. 



