THE PHARYNX. 



365 



the basilar process of the occipital bone and the under 

 surface of the petrous portion of the temporal, and becomes 

 thinner as it passes down, and is gradually lost on the sides 

 of pharynx ; the mucous coat above is covered by columnar 

 epithelium ; below, by squamous cells ; in it are imbedded 

 numerous mucous glands. The pharynx is separated 



4 5 



FIG. 160. MEDIAN SECTION OP THE HEAD. 



Vp, position of the soft palate during rest ; 1, orifice of Eustachian tube ; Vcl and Vc2, 

 first and second cervical vertebrae ; E. epiglottis ; G, glottis : 4. arytenoid cartilage ; 5, 

 cricoid cartilage : 3, thyroid cartilage ; 2, hyoid bone, 



from the vertebral column by a quantity of loose con- 

 nective tissue. In front it is irregularly attached to the 

 internal pterygoid plate, pterygo-maxillary ligament, side 

 of the tongue, hyoid bone, thyroid and cricoid cartilages. 

 In contact with its outer surfaces are the internal carotid 

 artery, the internal jugular vein, and ninth, tenth, 

 eleventh, and twelfth pairs of nerves, and the cervical 



