6oo 



A MANUAL OF VETERINARY PHYSIOLOGY 



is almost entirely tendinous. It is the tendo-ligament (Fig. 191, 2) 

 antagonistic to the flexor metatarsi (Fig. 191, 3) previously 

 described. During the attitude of standing it relieves the con- 



0', Fascia lata' Q 



Patella—T^ 



21', External condyle of tibia 



Crest of tibia 



Anterior or long extensor 

 Lateral extensor 



Annular ligament 

 External malleolus 



r, Semitendinosus 



qq'q'', Biceps femoris 



External head ot 

 gastrocnemius 



Soleus 



Tendon ot gastrocnemius 

 Tarsal tendon of 

 biceps femoris 



Deep flexor 



.^Superficial flexor 

 / tendon 



Annular ligamen 



Annular ligament 



Tendon of anterior extensor 



Tendon of lateral extensor 



Superficial flexor 

 tendon 



Deep flexor tendon 



Suspensory 

 ligament 



Branch of suspensory liga- 

 ment to extensor tendon 



Fig. 192. — Muscles of Lower Part of Thigh, Leg, and Foot of Horse, 

 External View (Ellenberger-Baum-Sisson). 



stant strain which would otherwise be imposed on the gastroc- 

 nemius, and maintains the hock extended. It is not only an 

 extensor of the hock, but one of the flexors of the lower 

 limb. 



