592 A MANUAL OF VETERINARY PHYSIOLOGY 



muscles of the arm, of which there are five, three not proceeding 

 below the knee, to the back of which they obtain attachment, 

 and two which run the entire length from elbow to phalanges. 



Extensor carpi obliquus 



Metacarpal tuberosity - 



Tendon from anterior,'* 

 to lateral extensor 



External small metacarpal bone 



Branch of suspensory liga- 

 ment to extensor tendon 



--Olecranon 



""Ulnar head of deep flexor 



Lateral extensor 



Deep flexor (humeral head) 



Tendon of flexor carpi externus 

 Accessory carpal bone (trapezium) 



-Check ligament 



• - Suspensory ligament 

 - Flexor tendons 



5v„.., Flexor tendons 

 . Lateral cartilage 



Fig. 186. — Muscles of Outside of Near Fore-Limb of the Horse 

 (Ellenberger-Baum-Sisson). 



a, Extensor carpi radialis ; g, brachialis ; g', anterior superficial pectoral ; c, 

 anterior or common digital extensor (extensor pedis) ; e, flexor carpi externus. 



All these flexor muscles are characterised by the presence in their 

 substance of a considerable amount of fibrous tissue, and both 

 at the knee and elbow are fused with the fascia of the fore-arm, 



