DEGLUTITION. 



183 



posterior pillars, are the tonsils ; and in the substance of, and 

 beneath the mucous membrane of the palate and pharynx, 

 are small glands, which have already been described. 



In Fig. 1 are shown the cavities of the mouth and phar- 

 ynx, with their relations to the nares and the larynx. 



FIG. 1. 



Section in the median line of the face and the superior portion of the neck, de- 

 signed to show the mouth in its relations to the nasal fossce, the pharynx, and 

 the larynx. (SAPPEY, Traite d' Anatomic Descriptive, Paris, 1857, tome iii., p. 

 44.) 



1. Sphenoidal sinuses. 2. Internal orifice of the Eustachian tube. 3. Pala- 

 tine arch. 4. Velum pendulum palati. 5. Anterior pillar of the soft palate. 

 6. Posterior pillar of the soft palate. 7. Tonsil. 8. Lingual portion of the 

 cavity of the pharynx. 9. Epiglottis. 10. Section of the hyoid bone. 11. La- 

 ryngeal portion of the cavity of the pharynx. 12. Cavity of the larynx. 



