296 



THE MUSCLES OF THE OX 



ward between the branches of the levator nasolabialis, and terminates in the outer 

 wing of the nostril. 



The dilatator naris transversus is replaced by the dilatator naris apicalis, 

 which is situated in the muzzle and joins its fellow at a median raphe. It arises 

 on the border and upper surface of the body of the premaxilla, the fibers passing 

 obliquely upward and outward to the inner wing of the nostril. 



The dilatator naris superior arises from the alar cartilage of the nostril and 

 ends in the inner wing of the nostril. 



Pig. 207. — Musci.es of Head of Ox, Lateral View. 

 a, Levator labii suijerioris proprius; b, levator nasolabialis; c, trapezius; c', mastoido-humeralis; d, d', 

 sterno-eephalicus; e, oitio-hyoideus; /, dilatator naris lateralis; o, zygomaticus; o' , malaris; /;, buccinator; i, 

 depressor labii inferioris; k, orbicularis oris; ?n, inasseter; n, parol ido-auricularis; o', zygoniatico-auricularis and 

 scutulo-auricularis su])erficialis inferior; o", scutulo-auricularis superficialis superior; o'", scutulo-auricularis 

 superficialis accessorius; p,p', scutularis; (/.frontalis; w, inylo-hyoideus; 7, concha; ;2, .!J, posterior and anterior 

 borders of /; S, scutifonn cartilage; 9, zygomatic arch; 2S' , ramus of maiulible; 37, external maxillary vein; 

 ;}S, jugular vein; 39, facial vein; >^.<, jjarotid gland; 50, oO', submaxillary gland; dotted line at 50 indicates posi- 

 tion of large lymph gland, and another lies partly under parotid gland, just in front of 44' 58, internal palpebral 

 ligament; 59, laryngeal prominence, (.\fter Ellenberger-Baum, .Vnat. fur Kiinstler.) 



The dilatator naris inferior consists of two layers which arise on the nasal pro- 

 cess of the premaxilla and the lateral nasal cartilage and end in the outer wing 

 of the nostril. 



The orbicularis oculi is well developed. 



The corrugator supercilii is not present as a separate muscle, its place and 

 function being taken by the frontalis. 



The malaris is broad, and .spreads out below on the fascia over the buccinator 

 and masseter; it is divided into two parts. 



