CHAPTER X. 
Pirate XX.— the parotid gland. 
Fig. 1. A dissection to exhibit the parotid gland. 
Fig. 2. Explains the former; a, a, the integuments turned back; 
b , the parotid gland ; c, its pipe or duct passing over the masseter , 
then perforating, d, the buccinator muscle , and opening into the 
mouth opposite the second molar tooth. The flow of saliva into 
the mouth is incessant, and it is one of the most useful digestive 
fluids. It is favorable to the maceration and division of the food, 
it assists it in deglutition and transformation into chyme; it also 
renders more easy the motions of the tongue in speech and 
singing. 
