210 The Farmer's Veterinary Adviser. 



and tied over a cork placed on tlie surface of the skin. II 

 may be untwisted and drawn out in twenty-four hours. 

 Or a pad of tow may be made with a sharp firm point and 

 gradually increasing to a considerable bulk (graduated 

 compress) and tied over the wound with the narrow point 

 pressing on the vessel. Or the orifice may be seared with 

 an iron at a dull red heat. 



Tearing, stretching, tvnsting, and scraping through arteries 

 usually lead to retraction of their coats and complete clos- 

 ure and these measures are sometimes adopted to check 

 hsemorrhage. 



ABTEBITIS. 



Inflammation of an artery may be external or interned 

 according as it affects the fibrous sheath or the inner lin- 

 ing membrane. In the external inflammation there may be 

 little danger, even if matter is formed, as the vessel will 

 continue to transmit the blood so long as its inner coat is 

 sound. But in internal inflammation the blood coagulates, 

 layer after layer, on its inner surface until the channel be- 

 comes impervious. This may cut off the blood entirely 

 from the part to which the artery was distributed, leading 

 to loss of power and substance, and in the case of the 

 limbs to a lameness, which comes on whenever the animal 

 is exercised, and increases with the exertion, but disap- 

 pears with a short rest of ten or twenty minutes. Or 

 small clots may be loosened from the mass and passing 

 on block smaller trunks, causing circumscribed inflamma- 

 tion at distant parts. 



Causes. Over-stretching of arteries. Plugging by clots 

 from the heart in endocarditis, or from inflamed veins. 

 Wounds, parasites, etc. 



Symptoms. Loss of muscular power and coldness oi 

 the parts beyond the seat of plugging, extreme tenderness 

 over the line of the vessel at the inflamed point, and 

 sometimes general fever. 



Treatment. Perfect rest, warm fomentations^ laxatives, 



