THE MUSCLES OF THE LEG AND FOOT 



291 



downward. The superficial flexor lies between the two heads and is adherent to 

 the outer one (Fig. 459). 



Relations. — Anteriorly, the stifle joint, the superficial flexor, popliteus, deep 

 flexor, popliteal vessels, and tibial nerve; internally (above), the semitendinosus, 



Semite ndinos us 



Gaslrociiemtus 



Popliteus 



Long digital flexor 



Tibialis posterior 



Gastrocne m i us tendo n 



Deep digital flexor ■- 

 Superficial flexor tendon -- 



Check ligament 

 Superficial flexor tendo n 



Deep flexor tendon 



Suspensory ligament 



^^^ "'Patella 



Crest of tibia 



'^^--. •■ 



Anterior or long digital extensor 



Tibialis anterior 



?• Km 



Peroneus tcrtius 



J Proximal annular ligament 



jf^lg^^^^l niQlleolus 



..i-/ Janer {cunean) tendon of tibialis anterior 

 DisUd annular ligament 

 Anterior extensor tendon 



Branch of suspensory ligament 

 to extensor tendon 



Fig. 203. — Muscles of Leg and Foot of Horse, Internal View. 

 r', Tendon of semitendinosus; w, gracilis; x, sartorius; ?/, vastus internus. (After EUenberger-Baum, Anat. 



fiir Kiinstler.) 



semimembranosus, and adductor, (below) the fascia and skin; externally (above), 

 the biceps femoris and peroneal (anterior tibial) nerve, (below) the fascia and skin. 



Blood-supply. — Popliteal artery. 



Nerve-supply. — Tibial nerve. 



