62 



THE EXTERIOR OF THE HORSE. 



of nbro-cartilage covered by mucous membrane, and extending from the superior 

 turbinated bone to the deep face of the internal ala. In a physical examination 

 this lamina must be unrolled, for it is often the seat of pathological alterations. 



FIG. 24. Examination of the nostril. 



State of the Mucous Membrane. The nasal mucous mem- 

 brane, in a state of health and of rest, is of a rosy color. After a 

 certain amount of exercise, it becomes bright red, more or less intense, 

 according to the plethora of the subject. It is paler and more follic- 

 ular upon the branch of the aforesaid lamina of cartilage. Let us only 

 indicate here that in a pathological state it may be pale yellow, leaden 

 as in glanders, infiltrated, and may present on its surface liberations, 

 pustules, small red spots, petechia, chancres, decortications, cicatrices, 

 tumors, etc. All these symptoms pertain to diverse diseases concern- 



