208 



SURGICAL DISEASES 



involving muscles, tendons and bursiv nsnally cause lameness, 

 and when involving a special organ, interfere with, or destroy, 

 its function. Extensive or serious wounds may be followed by 

 loss of appetite. An abnormal body temperature and other 

 symptoms characteristic of the different forms of blood poison- 

 ing may follow infection of the injured tissues by certain germs. 

 The rapidity with which wounds heal depends upon the kind 



of tissue injured and the 

 amount to be replaced, the 

 degree of motion in the part, 

 the kind and degree of infec- 

 tion and irritation and the 

 general condition of the ani- 

 mal. In general, skin and 

 muscles heal rapidly, tendons 

 slowly, cartilages unsatisfac- 

 torily and nerve tissue very 



slowlv 



Healing is 



greatly 



interfered with by movement 

 of the part (Fig. 59). The 

 more nearly the part can be 

 fixed or rested, the more 

 quickly and satisfactorily 

 does healing occur. Irritation 

 by biting, nibbling, licking, 

 bandaging, wrong methods of 

 treatment, and filth retard 

 healing and may result in serious wound complications. An 

 animal in poor physical condition, or one kept under unfavor- 

 able conditions for healing, cannot recover from the injury 

 rapidly or satisfactorily. 



Wound Healing. — The following forms of healing commonly 

 occur in wounds : First and second intention ; under a scab, and 

 by abnormal granulation. 



Fig. 59. — A large inflammatory growth fol- 

 lowing an injury to the front of the hock. 



