268 PEINCIPLES OP VETEKINAEY SUEGEET 



Tjelow the aneurism and the latter severed, provided that the 

 artery is within reach and that by doing so the arterial supply- 

 is not entirely cut off from the parts normally supplied by it^ 

 as otherwise the peripheral parts would undergo necrosis^ 

 being brought into a state of permanent anemia by the liga- 

 tures. Other means of value in human surgery, as elastic: 

 bandages, compression, injections of ergot, tincture of iron,, 

 etc, are of no special value in veterinary surgery. Those> 

 cases of aneurism of the posterior aorta, iliac arteries or 

 femoral and brachial arteries are beyond reach, although, 

 some authors suggest iodide of potassium and massage, th& 

 former being of doubtful value, while the latter is simply- 

 dangerous. 



Rupture of Arteries. 



What are the causes of ruptwre of the larger arteries ? 



The various causes may exert their influence in a twofold 

 manner. The assaulting agent may be directly or indirectly 

 responsible for the rupture of the artery. In the former, the 

 cause, a traumatism, directly injures the artery ; in the latter, 

 a diseased state of the arterial wall of the vessels disposes it to 

 ruptures, as the resisting powers of the arterial walls are les- 

 sened. Such indirect causes are falls and consequent concus- 

 sion, excessive muscular efforts, etc. 



Which pathological states of the arterial walls predispose^ 

 them to rv/ptwre? 

 Chronic deforming endarteritis, aneurisms and the de- 

 structive influence of neighboring neof ormations. 



What -do you understand hy spontaneous rv/ptwre of arteries f 

 An arterial rupture, the result of an indirect cause. 



