18 



DISEASES OF THE HORSE'S FOOT 



Action. — The action of this muscle is to extend the third 

 phalanx on the second, the second on the first, and the first 

 on the metacarpus. It also assists in the extension of the 

 foot on the forearm. 



Fig. 



10. — The Flexor Tendons and Extensor Pedis. 

 (After Haubner.) 



1, Tendon of flexor perf'orans ; 2, its supporting check-band from the posterior 

 li<'anient of the carpus ; 3, tendon of the flexor perforatus ; 4, ring and 

 sheath of the flexor perforatus ; 5, widening out of the flexor perforatus 

 to form the plantar aponeurosis ; 6, suspensory ligament ; 7. reinforcing 

 band from the suspensory ligament to the extensor pedis ; 8, the extensor 

 pedis. 



The Flexor Pedis Perforatus, or the Superficial 

 Flexor of the Phalanges. — In common with the perforans, 

 this muscle arises from the inner condyloid ridge of the 

 humerus. It is reinforced at the lower end of the radius 



