376 



COMPARATIVE ANATOMY 



A 



7Mk ,t 



Tr 



FIG. 281. LARYNGES OF VARIOUS MAMMALS. 



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

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

 troglodytes), from the ventral side. 



Ca, arytenoid cartilage ; Cr, ventral, and Cr l , dorsal plate of the cricoid ; Ct, 

 Ct l , thyroid cartilage ; Ctr, cartilaginous rings of the trachea ; Ep, epi- 

 glottis ; H, body of hyoid ; h, lesser, h l , greater conma of the hyoid ; Lt, 

 crico- thyroid ligament ; M, laryngeal pouch, which shows an enlargement 

 at f ; M.ge, genioglossus muscle ; Mth, thyro-hyoid ligament ; mu, submucous 

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

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

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



