412 BOVINE PATHOLOGY. 



CHAPTER X.— WOUNDS AND OTHER SURGICAL 

 CONDITIONS. 



Section 1, 



Wounds are solutions of the continuity of the superficial 

 soft parts of the animal body, extending more or less deeply 

 into other structures. They generally result from violence 

 or other form of injury applied from without, and vary 

 with the nature of the cause. Thus : 



Incised Wounds are cleanly cut with straight edges, a 

 tendency to bleed profusely, and to heal readily. They 

 are simple separations of parts of a tissue from one another, 

 and hence can be sometimes repaired by simply bringing 

 the parts again into apposition. 



Punctured Wounds result from forcible contact with 

 some penetrating instrument, which may break and leave 

 a portion of its substance in the depths of the wound. 

 The body, in the course of its entry, either cleanly cuts its 

 way or lacerates the tissues through which it passes ; in 

 the latter case healing is least readily brought about, but 

 this is not of much importance, for such wounds must heal 

 at the bottom first, and if union prematurely occur near 

 the surface accumulation of liquid products may give rise 

 to inconvenience and retard the healing process. It is 

 principally in wounds of this kind that we find serous 

 cavities and joints penetrated ; serious complications being 

 not of rare occurrence. 



Lacerated Wounds result from bluntness of the injuring 

 body and moderate force, whereby the tissues are torn, 

 their elasticity exceeded, and destruction of material along 

 the course of the instrument brought about. There is 

 seldom much haemorrhage in these cases, but the ragged 

 ends of the tissue require to be removed by sloughing, and 



