471 



of which one, an anterior, is curved in front of the heart. The iiniu M '1 liirun- show.- 

 this |M-culiarity. 



In tin- /'/</. the 1 nn^'s eoni]>oit themselves like those of Kumiminls. 



In tin- J><i and Cut, there ia no well- 

 marked (i-Min- in either liiii^' towards tin- Ki^. 'J41. 

 In ait, which causes tliat or^'aii to be ulniost 

 completely enveloped by pulmonary tissue. 

 The left lung has three lobes, and the right 

 four, .separate^ from one another by dtvp 

 fiin-ows. which are generally prolonged lo 

 the root. The lobules are small, very close, 

 and the pulmonary tissue is exceedingly 

 compact. (The pulmonary vesicles are pro- 

 portionately largtr than in Ruminants.) 



COMPARISON OF THE LABTNX, TRACHEA, AN1) 

 I.t X08 OF MAN WITH THOSE OF ANIMALS. 



1. Larynx. The human larynx is pro- 

 l'i-tioually shorter and wider than that of 

 animals. The principal curtilages are those 

 which have been already studied; but there 

 are, l*>ides, small cartilaginous bodies, to 

 \v liich special names have been given : these 

 are the cartilages of Santorini and of Wris- 

 IM-IU'. Tho facets on the cricoid for articu- 

 lation with the thyroid are placed on the 

 small cornua detached from the external face 

 of the cartilage. The thyroid is wide, and 

 protects the anterior face of the larynx ; the 

 nngle formed by the also, which is more 

 marked in the male than the female, is very 

 promiiu nt, and id named the pomum Adami. 

 Tho epiglottis is short, broad in its middle, 

 am' rounded at its summit, something like 

 that of the Carnivora. The muscles are the 

 ^ame in number and disposition as in these 

 animals; but there, is distinguished an 

 oblique arytenoideus a fasciculus of the 

 id, which crosses its fellow to form 

 an X in passing from tho upper 

 : of one arytenoid cart i lair.- 

 to the 1,, \\.-r border of tho other. 



LUNG OF THE SHKUr; IXKKHIOK VIi:w. 



, Kiu'lit lung; 2, Left lung; 3, Traclioa ; 

 4, Heart; 5, Carotid arteries; tj, 

 voiia cava. 



.1 vcntrii-li-; U. l.i-ft ventricli-; 

 .'.. Ui_'ht auricle; 4, Left aurir!,.-. 

 .'.. I'lilinonary artery; 6, Right 

 pulmonary artery: 7. I.i-ft pul- 

 ni.'nary artery; 8, Ligament of 

 iluctus arteriosua; 9, Arch of 



i; I, Superior vena cava; 

 1 I. Artrria iuiininiuata : I'-', Right 



lavi.ui vi-in, with the artery 

 I'l-iiin 1 it; I: 1 ., Ili.'ht c.iininiiii 

 caroti.l artery and \i-in : 1 !. 



. iiiimiiiiiiata : l.'i, l.--tt caro- 

 tid arti-ry and \.in; 1<! ? Left 

 >ubcla\lau vciu and artery; 17, 

 18, Right bronchii- : 

 . I'al- 



nu'i. -'1. Siiperiur I 1 ' 1 "' 



f ri-ht Inn-,': _'_'. Middle lube: 



'. Sii|..-ri..r 



"f lift luii;;; .'."', Iiifcrii'i- 



III M \N III Al.l ; I l."M 



