DISSECTION OF THE HEAD AND NECK. 



161 



Action. — To prick the ear, that is, to erect it and give its opening a 

 forward direction. 



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 squa- 



FiG. 19. 



Auricular Muscles and Nerves of a Mule (CJiauveoM), 

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

 auricularis externus ; 5. Temporalis ; 6. Corrugator supercilii ; 7. Orbicularis palpebrarum ; S. 

 United tendons of the levatores labii superioria proprli ; 9. Dilatator naris transversalis ; A. Auri- 

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

 D. Auricular branch of the lachrymal nerve. 



mous 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. 



