THE MOUTH 



415 



The submaxillary gland is small, reddish in color, and oval in outline; it is 

 covered by the parotid. Its superficial face is convex, and is marked by rounded 

 prominences. From its deep face a narrow process extends forward about two or 



Fig. 311. — Sagitt.\l Section of Pharyngeal Region of Pig, Partly Schematic. 

 1, Palate bone; 2, sphenoid bone; 2' , sphenoidal sinus; 2'', occipital bone; .i, epiglottis; 4, arytenoid carti- 

 lage; 0, thyroid cartilage; 6, root of tongue; 7, mouth cavity; <5, isthmus faucium; 9, hard palate; iO, septum na,si; 

 11, ventral muscles of head; a, soft palate; a' , free edge of a; b, dorsal wall of pharynx; c, fornix of pharynx; d, 

 cavity of larynx; c, g, naso-pharynx; /, oro-pharynx; h, posterior pillar of soft palate; i, dotted line indicating 

 lateral boundary between nasal cavity and pharynx; k, aditus laryngis; I, entrance to oesophagus; //(.Eustachian 

 orifice; n, pharyngeal recess; o, posterior naris. (After EUenberger, in Leisering's Atlas.) 



three inches (ca. 5 to 7.5 cm.) beneath the mylo-hyoideus muscle along with the 

 duct. The latter opens near the frenum linguae, but there is no papilla. 



The sublingual gland has an arrangement similar to that of the ox. The pos- 



Diverti- 



culuni 



Diverti- 

 culum ~ 

 (Esopha- 

 gus 



Lesser 

 curvature 



(Esophagus 



Pylorus 



Fig. 312. — Stomach of Pig, Parietal Surface. 



The organ contained a rather small amount of ingesta 



and hence is somewhat contracted. 



. I Duode- 

 / n um 



Pylorus 



Fic;. 313. — Stomach of Pig, Visceral Surface. 

 Organ was fixed in situ and is somewhat contracted. 



terior part (Glandula sublingualis grandicanalaris) is reddish-yellow in color, and 

 is about two inches (ca. 5 cm.) long, and half an inch wide; its posterior end is in 

 relation to the submaxillary gland and its duct. The anterior part is much 



