OCCIPITO-FRONTALIS. 



239 



The muscles contained in each of these 



1. Epicranial Region. 

 Occipito-frontalis. 



2. Auricular Region. 



Attolens aurem. 

 Attrahens aurem. 

 Eetrahens aurem. 



3. Palpebral Region. 

 Orbicularis palpebrarum. 

 Corrugator supercilii. 

 Tensor tarsi. 



Levator palpebrae. 



4. Orbital Region. 



Levator palpebrae. 

 Eectus superior. 

 Eectus inferior. 

 Eectus internus. 

 Eectus externus. 

 Obliquus superior. 

 Obliquus inferior. 



5. Nasal Region. 



Pyramidalis nasi. 



Levator labii superioris aleeque nasi. 



Dilator naris posterior. 



groups are the following: 



Dilator naris anterior. 

 Compressor naris. 

 Compressor narium minor. 

 Depressor alae nasi. 



6. Superior Maxillary Region. 

 Levator labii superioris. 

 Levator anguli oris. 

 Zygomaticus major. 

 Zygomaticus minor. 



7. Inferior Maxillary Region. 

 Levator labii inferioris. 

 Depressor labii inferioris. 

 Depressor anguli oris. 



8. Intermaxillary Region. 

 Buccinator. 

 Eisorius. 

 Orbicularis oris. 



' 9. Temporo-maxillary Region. 

 Masseter. 



Temporal. 

 

 10. Ptery go-maxillary Region. 



Pterygoideus externus. 

 Pterygoideus internus. 



1. EPICRANIAL EEGION OCCIPITO-FEONTALIS. 



Dissection (fig. 147). The head being shaved, and a block placed beneath the back of the neck, 

 make a vertical incision through the skin from before backwards, commencing at the root of the 

 nose in front, and terminating behind at the occipital protuberance ; make a second incision in a 

 horizontal direction along the forehead and round the side of the head, from the anterior to the 



Fig. 147. Dissection of the Head, Face, and Neck. 



posterior extremity of the preceding. Raise the skin in front from the subjacent muscle from 

 below upwards; this must be done with extreme care, on account of their intimate union. The 

 tendon of the muscle is best avoided by removing the integument from the outer surface of the 

 vessels and nerves which lie between the two. 



