36 MANUAL OF EQUINE MEDICINE. 



Syncope differs from collapse mainly in the suddenness of 

 the symptoms and in their shorter duration. 



DEATH. 



Death may begin at the heart, lungs, or brain. When the 

 heart's action suddenly and completely ceases, death is said 

 to occur from syncope. When its action more gradually 

 ceases, being accompanied by a gradual failure in the general 

 vitality, death is said to occur from asthenia. 



When death is due to interference with respiration, it is 

 said to take place from asphyxia. 



Death from coma begins at the brain, and is characterized 

 by stupor and insensibility. 



Finally, death is said to occur from necroemia when it is 

 due to decomposition of the blood. In this case the heart 

 ceases because the blood is no longer able to afford the 

 necessary stimulus. As examples of this mode of death 

 may be mentioned that occurring in purpura heemorrhagica, 

 scarlatina, and anthrax, and several other diseases. 



