THE PALATE 



1105 



Muscles. — The muscles of the soft palate are described later (p. 1134) with those of the 

 pharynx, with which they are closely associated. 



Vessels and nerves. — ^The arterial supply of the hard palate is derived chiefly from the 

 major palatine branches of the internal maxillary. The arteries of the soft palate include: 



Fig. 852. — Roof of Mouth, SHOw^NG Hard and Soft Palate Dissected on One Side. 



(Rauber-Kopsch.) 



Papilla incisiva 



/ 



Plicae palatinee 

 transversae 



Raphe palati 



Palatine glands 



Arcus glossopalatinus 



Tonsilla palatina 



Arcus pharyngopalatinus 



M. glosspalatinus 

 Palatine tonsil 

 M. pharyngopalatinus 



(1) Ascending palatine of external maxillary (facial); (2) pharyngeal branches of ascending 

 pharj-ngeal; (3) twigs from descending palatine of internal maxillary, which enter the smaller 

 palatine canals, are distributed to the soft palate and tonsils, and communicate with the 

 ascending palatine of the external maxillary (facial) artery; (4) lingual artery, by twigs from 

 the dorsal branch. 



Fig. 853. — Developing Palatine Shelves, Viewed prom Below. (McMurrich, from His.) 



The sensory nerves to the palate are derived chiefly from the fifth through the sphenopalatine 

 ganglion. The hard palate is supplied by the nasopalatine and anterior palatine branches; 

 the soft palate chiefly by the median and posterior palatine laranches. The motor nerves 

 will be mentioned later in connection w^ith the muscles. 

 70 



