FACIAL EXPRESSION. 



307 



time; respiration is suspended, the free motion of 

 the heart is impeded, and the mouth is opened, as 

 the maxillary muscles destined to this purpose are 

 affected; but as these act alone upon the lower 

 maxilla, the teeth are not discovered. The hands 

 are extended, and more particularly the fingers, 

 from the action of this muscular plexus. 



"The effects of contempt are very different (Fig. 40). 

 The fifth pair of nerves are put in motion. Thus 



Fig. 38. A countenance perfectly 

 placid. 



Fig. 39. Expressing Surprise. 



are the eyebrows drawn inwards and downwards ; 

 the mouth is firmly closed; but as the lower lip 

 rises in the middle it becomes arched. The eyes 

 are drawn sideways, the musculus abducens and 

 adducens acting together by the force of habit. 

 By making the head to turn towards the right, and 

 the eyes toward the left hand, the passion is ren- 

 dered more expressive. m . 



(Fig. 41.) " In complacency, friendly greetings, 

 and tacit joy, those parts alone act which have an 



