30 Hounds 



point of the shoulder to the elbow. This bone is some- 

 what spiral in shape, having a groove — the musculo- 

 spiral groove — running throughout the length of the 

 bone, the lower end of which joins the bones of the 

 forearm at the elbow. Now the forearm is really 

 composed of two long bones called the radius and 

 ulna, the former being situated in front of the latter, 

 though only loosely attached to one another through- 

 out their length by interosseous tissue. The radius 

 and ulna attain their maximum length in the Grey- 

 hound and Deerhound, and their minimum in the 

 Bassets and Dachshunds. 



The ulna extends from the point of the elbow to 

 the wrist or knee-joint at the back of the limb, and 

 the radius practically the same distance in front. 

 The bone last named articulates with the ulna, with 

 the humerus or arm bone, and with one of the bones 

 of the knee-joint below. 



The carpus, wrist or knee-joint has seven small 

 bones in it arranged in two rows, viz., four in the 

 lower and three in the upper. 



Those in the upper row are (from inside limb) : 



1. The Scapho-lunar. 



2. The Cuneiform. 



3. Pisiform. 



In the lower row: 



Trapezium. 

 Trapezoid. 

 Os magnum. 

 Unciform. 



