GENERAL PART OF EXAMINATION. 



59 



-=9 



4. Examination of the Conjunctiva. 



The examination of the conjunctiva serves to determine 

 the quantity and condition of the circulating blood. 



Method. Avoid all rough and hasty manipulations. Before 

 grasping the eyelid gain the animal's confidence by arranging the 

 foretop and gently stroking the forehead. The right eyelid should 

 be lifted with the fingers of the left hand, the left one with those 

 of the right hand. By means of the thumb the upper eyelid is 

 raised, the index finger then replaces the thumb, and by gently 

 pressing the everted lid inwardly, the mucous membrane of the 

 upper eyelid and the membrana nictitans become visible. The 

 thumb, which is now free, draws the lower lid downward. The 

 other three fingers may be rested against the zygomatic arch, 

 steadying .the hand. (See figure 16). 



Fig-. 16. 

 In the ox a good view of the scleral conjunctiva may be ob- 

 tained by simply taking hold of a horn and the nose, and drawing 

 the head to one side. 



If we wish to arrive at the condition of the blood from 

 an examination of the mucous membrane of the eve, that 



