5 2 



EQUINE ANATOMY. 

 SUPER-MAXILLO-NASALIS MAGNUS. 



Origin. Below ridge on superior maxilla. 

 Insertion. Skin of external wing of nostril. 

 Action. Dilates anterior nares. 

 Nerve. Facial. 



SUPERFICIAL MUSCLES OF THE FACE AND HEAD. 



i, Temporoauricularis externus, or attpllens maximus; 2, Levator palpebrae, or cor- 

 rugator supercilii; 3, Temporo-auricularis interims, or attollens posterior; 4, 5, 

 Zygomatico-auricularis, or attollens anterior; 6, Orbicularis palpebrarum; 7, 

 Parotido-auricularis, or deprimens aurem; 8, Parotid gland; 9, Temporal, or sub- 

 zygomatic vein; 10, Ditto, artery; n, 12, Superior and inferior maxillary nerves; 

 13, Fascia of the masseter muscle; 14, Nasal bones; 15, Super-naso labialis, or 

 levator labii superioris alaeque nasi; 16, Super-maxillo-labialis, or nasalis longus 

 labii superioris; 17, External maxillary or facial artery; 18, Facial vein; 19, Super- 

 maxillo-nasalis magnus, or dilator naris lateralis; 20, Superior maxillary nerve; 

 21, Zygomatico-labialis.or zygomaticus; 22, Parotid, or Steno's duct; 23, Masseter; 

 24, Alveolo-labialis, or buccinator; 25, Super-maxillo-nasalis parvus, or nasalis 

 brevis labii superioris; 27, Labialis, or orbicularis oris; 28, Maxillo-labialis, or 

 depressor labii inferioris; 29, Mento-labialis, or levator menti. 



SUPER-MAXILLO-NASALIS MINOR. 



Origin. External process of pre-maxilla and superior maxilla. 

 Insertion. Skin and cartilage of nostril. 

 Action. Dilatation of nostril. 

 Nerve. Facial. 



