

430 



DISEASES AND THEIR TREATMENT. 



Capped Hock. 



; Fie. 740.— An Ordinary 

 Capped Hock. 



This is an injury or bruise at the point of the 

 hock, and is usually caused by striking the parts 

 against some hard object. If the inflammation 

 is acute, use cooling applications. When the 

 inflammation has subsided, use . any ordinary 

 stimulant or blister recommended for the pur- 

 pose. 



Wind-Galls. 



Wind-gall was the name given, to. those softj 

 puffy swellings found at the back part of the 

 fetlock joint, from a supposition: that they con- 

 tained air. They consist of enlargement of 

 the little sacs, or bags, which are always found 

 to contain a mucous fluid wherever tendons pass 

 over joints, as at the back of, the fetlock. This 

 form may be termed simple wind-gall. In other cases, the distension 

 is caused by an increased secretion, and bulging of, the capsular 

 ligament of the joint itself. This form may be distinguished as 

 complicated wind-gall. > 



Few horses that have done any work are free from them, and 

 unless dependent 

 on some more se- 

 rious lesion than 

 simple distension 

 of these bur see 

 mucosa, they are 

 of np conse- 

 quence. 



Causes. — Hard 

 work is the well- 

 known cause of 

 w i n d-g all. In 

 rapid motion or 

 heavy draught 

 the friction of the tendons is greatly increased ; consequently an 

 increased secretion of synovia is required, and takes place in all 

 synovial sacs during exercise ; but if the action be not so violent 

 as to strain the parts, it 'is speedily reabsorbed. On the other hand, 

 if the exertion be inordinate, these little bursa mucosa become injured, 

 inflammation is set up, and they become permanently enlarged. 



Fig. 741.-Natural, Fig. 742. -Showing 

 Healthy Joint. Two Enlargements. 



Fig. 743. -Clearly Marked 

 Condition of Wind-gall. 



