MUSCLES OF THE FACE 345 
The buccinator shows no marked variation, but its superficial layer is well 
developed. 
The dilatator naris lateralis arises in front of the facial tuberosity, passes for- 
ward between the branches of the levator nasolabialis, and terminates in the lat- 
eral wing of the nostril. 
The dilatator naris apicalis is situated in the muzzle and joins its fellow at a 
median raphé. It arises on the border and upper surface of the body of the pre- 
Fic. 301—Muscies or Heap or Ox; Dorsat VIEW. 
a, a’, Levator labii superioris proprius; 6, levator nasolabialis; f, dilatator naris lateralis; g’, malaris; 0, zygo- 
matico-auricularis and scutulo-auricularis superficialis inferior; 0’, scutulo-auricularis superficialis superior; 0’, 
seutulo-auricularis superficialis accessorius; p, scutularis; u, frontalis; 2, orbicularis oculi; 1, concave surface of 
concha; 3, 2, anterior and posterior borders of concha; 8, scutiform cartilage; 34, parietal cartilage; 39, facial vein; 
49, muzzle; 58, medial palpebral ligament. (After Ellenberger-Baum, Anat. fiir Kunstler.) 
maxilla, the fibers passing obliquely upward and outward to the medial wing of the 
nostril. 
The dorsal part of the lateralis nasi arises from the alar cartilage of the nostril 
and ends in the medial wing of the nostril. 
The ventral part of the lateralis nasi consists of two layers which arise on the 
nasal process of the premaxilla and the lateral nasal cartilage and end in the lateral 
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. 
