THE ANATOMY OF THE FACE AND NECK 63 



The lower part of the pharynx is continuous with a fleshy tube 

 which leads downward from it, passing completely through the 

 thorax and the diaphragm, and then entering the stomach. This 

 tube is called the oesophagus, gullet, or food-passage. Thus, 

 after food or drink has passed through the mouth, between the 

 tongue and the palate, it enters the pharynx, and is then con- 

 veyed to the stomach by means of the oesophagus. 



Fig. 75. Medial Section of the Face and Neck. 



i. sphenoid bone ; 2, nasal cavity ; 3, brain cavity ; 4, ethmoid bone ; 5, frontal bone ; 

 6, nasal bone ; 7, superior maxillary bone ; 8, palatal bone * 9, superior turbinated bone ; 

 10, middle turbinated bone ; n, inferior turbinated bone ; 12, soft palate ; 13, upper part of 

 pharynx ; 14, lower part of pharynx ; 15, oesophagus ; ig ( larynx ; 17, glottis ; 18, epi- 

 glottis ; 19, opening of Eustachian tube; 20, inferior maxillary bone ; 21, tongue; 22, 

 tonsil ; a to /, bodies of cervical vertebra ; s, spinal cord ; f, processes of cervical vertebrae ; 

 o, portion of occipital bone. 



There is another tube that leads downward from the pharynx. 

 It is situated just in front of the oesophagus, and is that hard 

 tube which may be felt in the front part of the throat. This is 

 called the trachea (Gr. trachus, rough) or windpipe. The upper 

 part of the trachea is larger than the rest, and forms that promin- 



