LUNGS 



289 



JSp- 



Ct 



B 



Tr 



FIG. 234. LARYXGES OF VARIOUS MAMMALS. 



A, larynx of Deer, seen from the left side ; B, longitudinal section through the 

 larynx of the Fox ; C, larynx of the Howling Monkey (Mycetes ursiniw), from 

 the left side ; D, Larynx of Chipanzee (Simia troglodytes), from the ventral 

 side. 



Tr, trachea ; Ctr, cartilaginous rings of the trachea ; S, mucous membrane of the 

 trachea and tongue ; Cr, ventral, and O 1 , dorsal plate of the cricoid ; Ct, 

 Ct l , thyroid cartilage ; oh, uh, anterior and posterior cornua of the latter ; 

 Ca, arytenoid cartilage ; pm, processus muscularis of the latter ; Ep, epi- 

 glottis ; H. body of hyoid ; h, lesser, h 1 , greater cornua of the hyoid ; Lt, 

 crico-thyroid ligament ; Mth, thyro-hj'oid ligament ; M, laryngeal pouch, 

 which shows an enlargement at t ; 1, 2, 3, the three resonance cavities of 

 Simia troglodytes ; mil, submucous tissue with muscles ; M.ge, genioglossus 

 muscle ; Z, tongue. 



