300 PRINCIPLES OF VETERINARY SURGERY 



Tearing is sometimes used as an expedient for exeresis. 

 It is also a common recourse in obstetrics when embi'votomy 

 is necessary. Pedunculated cutaneous tumors of small di- 

 mensions are not infrequently torn ofif by the surgeon. Cer- 

 tain forms of warts in the ox are removed in this manner. 



SYMPTOMS. — The solution of continuity is irregular, 

 and the hemorrhage is slight, in consequence of the vascular 

 obliteration produced by stretching of the vessels. The pain 

 does not seem as excessive as that produced' by similar in- 

 juries in the human being. The wrenching occurs most 

 frequently at the articulations. The skin is found mangled 

 and drawn over the wound, in which are found fragments of 

 muscle, tendons, or ligaments and sometimes portions of 

 bone, and extremities of vessels and nerves. 



. It is evident that during the traction, the skin offers the 

 greatest resistance, for when it has once yielded the other 

 structures separate with much more facility. A knowledge 

 of the resistance and peculiar elasticity of the skin is im- 

 portant in obstetrics. The removal of a limb from the foetus 

 must always be preceded by incising the skin and cutting 

 it, as far as possible, from the subjacent tissues. 



TREATMENT.— Death may result from these grave 

 traumatisms. When the accident is irremediable, it is ad- 

 visable to carefully trim the wound, to disinfect it and to 

 cover it with an absorbent antiseptic powder. The tissues 

 injured beyond the capabilities of regeneration will be elimi- 

 nated by suppuration, making the anfractuous wound as- 

 sume a more regular physiognomy. 



WOUNDS BY TEETH-BITES. 



Bites are solutions of continuity which combine together 

 the features of punctures, lacerations and contusions. They 

 vary with the species of the animal which inflicts them.' 



ETIOLOGY. — Bites are very frequently observed in 



