412 



HITCHCOCK'S ANATOMY 



760. This sense in fishes appears to be very feeble. "The 

 part named tongue in them consists merely of the anterior ex- 

 tremity of the tongue-bone covered by mucous membrane." 

 If fishes possess this sense, the palate rather than the tongue 

 is probably its seat. 



761. In vertebrates. — Taste, doubtless, exists in all the 

 lower animals else how could they select their food ? The 

 seat of this sense is not always discoverable, as can be done 

 in the Cephalopoda. But the sense exists in all, even in the 

 Protozoa. Fig. 371 exhibits the tongue of the common fly, 

 which is doubtless the seat of this sense. 



SENSE OF SMELL. 



DEFINITIONS AND DESCRIPTIONS. 



762. Anatomy of the Nose —The Nose which contains 

 the organs of smelling, is a triangular pyramid placed upon 

 the face, its apex connected with the forehead, and its base 

 descending nearly to a level with the upper lip. It is prin- 

 cipally made up of bone cartilage and integuments, having a 



thin plate of bone (the vo- 

 mer) and cartilage in the 

 middle which run in a verti- 

 cal direction, and divide the 

 cavity into two portions called 

 the nostrils. (Fig. 372.) 



A View of the Cartilages of the Nose. 

 1 ? The Nasal Bones. 2, The Cartilaginous 

 Septum. 3, The Lateral Cartilages. 4, 

 The Alar Cartilages. 5, The Central por- 

 tions of the Alar Cartilages which consti- 

 tute the Columns. 6. The Appendices of 

 the Alar Cartilage. 7, The Nostrils. 



