////; 



AND NECK. 



101 



i/ed as constrictors and elevators of the pharynx to facilitate deglutition ; a fibrous 

 coat, the pharyngeal aponeurosis, situated between the mucous and muscular 

 , oats, for Strength and support. This is also called the pharyngeal aponeurosis. 



/V/;v<v>/ ri'/W A-.V> paints docs tlic pliaryn.v extend ' 



From the base of the skull to the cricoid cartilage. 



What is tlii- phtin-iigcal tonsil, and inhere is it located / 



It consists of a mass of lymphoid tissue similar to that found in the tonsil. 

 It is located on the back part' of the pharynx, between the Eustachian orifices. 



(NTERK*L mnraoio 



Superior constrictor 



Pterygo-mandlbular 



ligament 

 Stylo-hyoid ligament 



e constrictor 



Stylo -phry ngeus 



Inferior oonatrlotor 



Thyroid eartilago 



Crioo-thyroid 

 Crlooid cartilage 



(ESOPHAGUS 



n;. (>2. TIIK MUSCLES OF THE PHARYNX. 



Distinguisli between pharyngeal fascia and pharyngeal aponciinms. 

 The fascia is behind the pharynx. It is the fourth layer of deep cervical 

 fascia continued upward. The aponeurosis is one of the proper coats of the 

 pharynx, located between the mucous and the muscular coats. 



What important structures do you find between the superior and middle constric- 

 tors of tlie pharynx .' 



The glosso-pharyngeal nerve and the stylo-pharyngeal muscle. (Fig. 63.) 

 What do YOU find hctu<ccn the middle and inferior constrictors of the pliarynx ' 

 The superior laryngeal branch of the pneumogastric nerve, and the superior 

 laryngeal branch of the superior thyroid artery. (Fig. 63.) 



