CHAPTER VIII. 



DISEASES OF BLOOD-YESSELS A^D LYM- 

 PHATICS. 



Wounds of arteries — punctured, cut, torn. Arteritis, inflammation of ar 

 teries. Embolism, plugging. Aneurism, dilatation. Wounds of veins. 

 Phlebitis, inflammation of veins — circumscribed, diffuse. Varicose — dilated 

 veins. Lymphangitis, inflammation of lymphatics. Weed. Poisoned and 

 irritated wounds. 



DISEASES OF ABTEBIE8. 

 WOUNDS OP ABTEEIES. 



Punctured woicnds are rarely dangerous, as the walls 

 quickly close and the few drops of blood which escape 

 help to plug the orifice ; but there is danger of inflamma- 

 tion and plugging of the yessel, and cold or warm fomen- 

 tations with rest are desirable. 



Gut wounds, if only implicating the outer coats, soon 

 heal and are rarely followed by dilatations as in man. If 

 all the thickness of the wall is incised the result will be 

 according to the direction. If in a line with the course of 

 the vessel there is little risk and slight pressure will usu- 

 ally check bleeding. If transverse or oblique the elastic- 

 ity of the walls of the vessel holds the orifice open and 

 bleeding is severe, the blood flowing in jets and of a bright 

 red color. If cut completely across, the arterial coats re- 

 tract and curl within themselves and in small vessels will 

 often close the opening. 



To check bleeding the end of the vessel may be sought 

 and tied, or a piece of silver wire may be passed through 

 to the soft parts beneath it by the aid of a cuiwed needloj 

 14 



