336 



fascijE and muscles of the horse 



is inserted into the fibular and fourth tarsal bones. The lateral tendon gives off 

 a branch which forms a loop around the long extensor tendon (Fig. 293). 



Relations. — Superficially, the long extensor; deeply, the tibialis anterior. The 

 anterior tibial vessels cross the deep face of the outer branch. 



Lateral ridge of trochlea of femur - " JH 



7\ 



Lateral femoro-tibial ligament 



Lateral meniscus 

 Lateral condyle of tibia 



Long extensor {stump 



Peroneus tcrliiis 

 Tibialis anterior 

 Lateral extensor 



Tendi7ious Zoop-j [ 



Extensor brei'is 



Tendon of lateral extensor 

 Tendon of long extensor 



Medial ridge of trochlea of femur 



Medial meniscus 



Medial femoro-tibial ligament 



Tendon of long extensor 

 Annidar ligament 

 Peroneus tertius 



Medial tendon of tibialis anterior 



Ajiterior tendon of tibialis anterior 

 Anterior tendon of peronetis tertius 



Annular ligament 

 Mt. Ill 



Fig. 293. — Muscles of Right Leg of Horse; Front View. 

 The greater part of the long extensor has been removed. 1, 2. 3, Stumps of patellar ligaments; 4, tuberosity of tibia. 



4. Tibialis anterior.' — This lies on the dorso-lateral face of the tibia; it is wide 

 and flattened above, pointed below. 



Origin. — The lateral condyle and border of the tibia and a small area on the 

 lateral surface of the tuberosity. 



1 This is also Ivnown as the muscular part of the flexor metatarsi. 



