7 o THE POCKET ANATOMY 



Inferior dental: descends with and behind inferior dental 

 nerve through dental foramen on inner side of ramus of 

 inferior maxilla, divides opposite ist bicuspid into incisor and 

 mental, the former going to incisor teeth ; anas, opposite 

 fellow : the latter comes out through mental foramen ; anas. 

 sub-mental, inferior labial, inferior coronary. Mylo-hyoid 

 branch given off as artery enters dental foramen, runs in mylo- 

 hyoid groove to muscle. Lingual branch accompanies lingual 

 nerve. 



Branches from Pterygoid portion : 



Deep temporal (2) : anterior and posterior to temporal fossa 

 between muscle and cranium ; anas, other temporal, lachrymal 

 through foramina in malar bone. 



Pterygoid : to pterygoid muscles. 



Masseteric : passes over sigmoid notch to deep surface of 

 masseter ; also supplies temporo-maxillary articulation. 



Buccal: runs forward with buccal nerve between internal 

 pterygoid and jaw to buccinator; anas, facial. 



Branches of Spheno-M axillary Portion : 



Posterior superior dental, or alveolar : given off as artery 

 passes into spheno-maxillary fossa ; descends on posterior 

 aspect of maxilla with branch of superior maxillary nerve, 

 enters posterior dental canals, supplying molars, bicuspids, 

 antrum, gums, etc. 



Infra-orbital: continuation of trunk, accompanies superior 

 maxillary nerve through infra-orbital canal, appearing on 

 face beneath levator labii superioris ; anas, facial and buccal. 

 In the canal it gives off branches to orbit, and an anterior 

 dental branch goes with nerve to supply front teeth ; anas. 

 posterior dental. On the face it supplies lachrymal sac and 

 inner canthus ; anas, ophthalmic ; and gives branches down- 

 wards ; anas, transverse facial, buccal and facial. 



Descending, or superior palatine : through posterior palatine 

 canal with large palatine nerve, along hard palate, and 

 through foramen of Stenson in anterior palatine fossa ; anas. 

 artery of septum from facial and naso-palatine. 



Vidian : through vidian canal with nerve, supplies Eusta- 

 chian tube and tympanum. 



Pterygo-palatine : backwards through pterygo-palatine canal 

 with pharyngeal nerve to upper part of pharynx. 



Nasal, or spheno-palatine : enters spheno-palatine foramen, 

 supplying posterior ethmoidal cells, etc. Branch. Naso-pala- 

 tine or artery of septum, runs along vomer; anas, descending 

 palatine. 



INTERNAL CAROTID. Extent. From superior border of 



