I208 



A MANUAL OF ANATOMY 



upper head of the external pterygoid, and, passing upwards, it 

 enters the posterior part of the temporal muscle on its deep surface. 

 The long buccal nerve passes outwards between the two heads of 

 the external pterygoid, and then downwards and forwards in 

 contact with the inner surface of the temporal muscle at its insertion. 

 Having emerged from underneath the mandibular ramus and 

 anterior border of the masseter, it is received upon the outer surface 



Posterior Deep 

 Temporal Nerve 



Masseteric Nerve, 

 Auriculo -Tempo 

 ral Nerve 

 Facial Nerve — S^ 



Mylo-hyoid Nerve. 

 Inferior Dental Nerve 



Anterior Deep 

 Temporal Nerve 



.„ Long Buccal 

 Nerve 

 Short Buccal 

 Nerve 



.. Lingual Nerve 



Mental Nerve 



Fig. 493. — The Nerves of the Temporal and Pterygo-maxillary Regions 



(HiRSCHFELD AND LeVEILL£). 



I, Temporal Muscle ; 2, External Pterygoid ; 3, Internal 

 Pterygoid ; 4, Masseter ; 5, Buccinator. 



of the buccinator, where it communicates with the short buccal 

 branches of the facial nerve to form the buccal plexus. Thereafter 

 its terminal branches are distributed to the skin over the buccinator 

 muscle and the mucous membrane which lines it. The long buccal 

 nerve furnishes two branches, namely, the external pterygoid nerve 

 and the anterior deep temporal nerve. The external pterygoid nerve 

 is detached from it near its origin, and enters the external pterygoid 

 muscle on its deep surface. The anterior deep temporal nerve arises 

 from it after it has emerged between the two heads of the external 



