the anterior pillar or froenum linguae ; the posterior 

 extremity shows a median mucous fold going to tlie 

 epiglottic cartilage ; two lateral folds called the pos- 

 terior pillars of the tonp*ue, and the amvij-dalpidfcavi- 

 ties. Structure : mucous membrane with hlifonu, '^f^ ^ 

 X-fungiform and calciform papillse. Muscles : five. ^ 



1. Stylo-glossus. — Synonyms. Hyo-glossus longns, 

 (P). Kerato-giossus externus, (L). Attachments : 

 External surface of the long branch of the hyoid and 

 near the tip of the tongue. Action : Fulls the tongue 

 backwards or sideways. 



2. Great hyo or basio-glossus. — Synonyms. Hyo- 

 glossus brevis, (P). Hyo-glossus, (L). Attachments : 

 The extremity of the cornu and the anterior apex of 

 the hyoid bone to near the superior face of the tongue, 

 which it retracts. ^^ ^^^^^ — j /C-^t^t^ 



3. Genio-glossus. — Synonyms. Genio hyo-glossus, 

 (P). Attached to the lower jaw near the symphysis, 

 and to the upper surface of the tongue. Action : 

 Carries the tongue forwards, backwards and down- 

 wards in the buccal cavity. 



4. Small hyo-glossus. — Synonyms : Lingualis, (P). 

 Attachments: Inner side of the articulation of the two 

 branches of the hyoid bone, to the superior face and 

 sides of the tona'ue. Action : Contracts and retracts 



C^-^ 



W^^r^^ 



