THE RABBIT. 333 



358. The second division of the fifth or maxillary nerve has 

 been exposed by the removal of the eye and its muscles, and is seen to 

 lie on the floor of the orbit : to see it satisfactorily the maxilla must be 

 gradually broken away : it supplies the upper teeth, and a large branch 

 passes through the infraorbital foramen (§ 65) to the snout. 



XLV. Remove the remainder of the mandibular ramus 

 of the side on which you are working : dissect 

 away the pterygoid muscles : pass a probe from the 

 cut end of the gullet forwards into the mouth : lay 

 open the gullet along this, and pull the tongue 

 downwards so as to get a good view of the interior 

 of the mouth. Note : 



359. The transversely-ridged palate (Fig. 64) or roof of 

 the mouth, continued backwards into a soft membrane, the 

 velum palati (vl.pa). 



360. The tongue {tg), firmly fixed by its postero-inferior 

 part to the floor of the mouth, presenting on its dorsal 

 surface a number of small elevations or papillae, and on 

 each side of its proximal end a small, oval, ridged area, the 

 papilla foliata. 



361. The pharynx, or funnel-shaped posterior ex- 

 tremity of the mouth, continued backwards into the 

 gullet. 



362. The glottis, an aperture on the floor of the pharynx, 

 leading, through the larynx, into the trachea. It is guarded 

 in front by a large flap of cartilage, the epiglottis {ej>g), 

 and behind by two small processes of mucous membrane, 

 the cornicula laryngis {da). 



363. The aperture of the posterior nares {p.na), an 

 oval opening in the roof of the pharynx : a probe passed into 

 it enters the nasal chamber (see § 366). 



364. The positions and characters of the teeth (see 

 §§ 77—80, pp. 277, 278). 



