386 



MUSCLES ON THE FRONT OF THE LEG. 



3. Extensor Longus Digitorum Pedis, 



Arises, tendinous and fleshy, from the upper and outer part 

 of the head of the tibia, and from the head of the fibula where 

 it joins with the tibia, and from the 

 interosseous ligament ; also from the 

 tendinous fascia, which covers the up- 

 per and outside of the leg by a number 

 of fleshy fibres ; and tendinous and 

 fleshy from the anterior spine of the 

 fibula, almost its whole length, where it 

 is inseparable from the peroneus tertius. 

 It splits into four round tendons, under 

 the ligamentum tarsi annulare. 



Inserted, by a flat tendon, into the 

 root of the first joint of each of the four 

 small toes ; and is expanded over the 

 upper side of the toes, as far as the root 

 of the last joint. 



Use. To extend all the joints of the 

 four small toes. 



N. B. A portion of this muscle, 

 which is called 



4. Peroneus Tertius, 



Arises, from the middle of the fibula, 

 continues down to near its inferior ex- 

 tremity, and sends its fleshy fibres forwards to a tendon, which 

 passes under the annular ligament, and is 



* The muscles of the anterior tibial region. 1. The extensor muscles inserted 

 into the patella. 2. The subcutaneous surface of the tibia. 3. The tibialis 

 anticus. 4. The extensor communis digitorum. 5. The extensor proprius 

 pollicis. 6. The peroneus tertius. 7. The peroneus longus. 8. The peroneus 

 brevis. 9, 9. The borders of the soleus muscle. 10. A part of the inner belly 

 of the gastrocnemius. 11. The extensor brevis digitorum ; the tendon in front 

 of this number is that of the peroneus tertius ; and that behind it, the tendon 

 of the peroneus brevis. 



