376 



COMPARATIVE ANATOMY 



A 



Cr' 

 uh 



B 



-s 



Tr 



FIG. 281. LARYNGES OF VARIOUS MAMMALS. 



A, Deer, seen from the left side ; B, Fox, longitudinal section ; C, Howling 

 Monkey (Mycetes urfiinus), from the left side; D, Chimpanzee (Simla 

 troylodytm), from the ventral side. 



Ca, arytenoid cartilage ; Cr, ventral, and 6V 1 , dorsal plate of the cricoid ; 6V, 

 6V, thyroid cartilage ; Ctr, cartilaginous rings of the trachea; Ep, epi- 

 glottis ; //, body of hyoid ; //, lesser, h l , greater cornua of the hyoid ; Lt, 

 crico-thyroid ligament ; J)/, laryngeal pouch, which shows an enlargement 

 at t ; M.ye, genioglossus muscle ; Mth, thyro-hyoid ligament ; ma, submucous 

 tissue with muscles ; oh, uh, anterior and posterior cornua of the thyroid ; 

 pin, processus muscularis of the arytenoid ; S, mucous membrane of the 

 trachea and tongue ; Tr, trachea ; Z, tongue ; 1, 2, 3, resonance cavities. 



