ANATOMY IN" A NUTSHELL. 



551 



Origin. — From the whole length of the greater cornu and from the body 

 of the hyoid bone. 



[nsertion. — Into the side of the tongue. 



Action. — To draw down the side of the tongue. 



Nerve Supply. — Hypoglossal. 



Blood Supply. — Lingual artery. 



] 1 . Middle constrictor. — 



Origin. — From the greater cornu of the hyoid Ik die and the stylo-hyoid 

 ligament. 



Insertion. — Into the middle line of the pharynx by the fibrous raphe. 



Action. — To constrict the pharynx antero-posteriorly. 



Nerve Supply. — Pharyngeal plexus. 



PLATE CCLXXXI. 



DUCTUS ENDOLYMPHATIC!.)"; TYMPANIC CAVITY 



SACCULE 



EUSTACHIAN TUBE'! 1/1 4 

 MEMRRANA TYMPANI 

 EXT AUDITORY MEATUS 



Diagrammatic View of the Organs of Eearing. 

 (Modified prom Cunningham.) 



Blood Supply. — Same as the blood supply to the pharynx, which is given 

 on page 315. 



^'2. Inferior Ungualis, — This muscle runs along the under edge of the 

 tongue in its whole length, h makes the dorsum convex and shortens the 

 tongue. 



LESSON CLXXXVIII. 

 There auk three Pairs of Meati ses i\ the Nose. (Plate CCLXIV). 



The superior meatus, which is the smallest of the three, is situated be- 



