DISSECTION OF THE HEAD AND NECK. 



165 



The Zygomatico-auricularis, or Attolens Anticus. This muscle is 

 continuous with the preceding by an intermediate aponeurosis, and 

 its own muscular substance is generally divided into two slips by 

 intermediate fascia. It arises from the zygomatic process of the 



Fig. 21. 



Auricular Muscles and Nerves of a Mule (Chauveau). 



1 Parieto-auricularis externus ; 2. Parieto-auricularis interims ; 3. Scutiform cartilage ; 4. Scuto- 

 aur'ieularis externus ; 5. Temporalis ; 6. Corrugator supercilii ; 7. Orbicularis palpebrarum ; 8. 

 United tendons of the levatores labii superioris proprii ; 9. Dilatator nans transversal is ; A. Auri- 

 cular branches of 1st cervical nerve ; B. Anterior auricular nerve (of 7th) ; C. Supraorbital nerre ; 

 D. Auricular branch of the lachrymal nerve. 



squamous temporal bone; and it is inserted by an inner slip into 

 the scutiform cartilage, and by an outer slip into the outer aspect 

 of the base of the concha. 



Action.— To prick the ear, like the preceding muscle. 



