POPLITEAL ARTERY 



623 



medial side of the knee-joint. Here it anastomoses (fig. 499), above with the superior medial 

 articular and the superficial branch of the genu suprema (anastomotica magna), and across the 

 front of the tibia with the inferior lateral articular. It supphes branches to the lower and medial 

 part of the joint. 



{d) The inferior lateral articular artery [a. genu inferior lateralis] passes laterally above the 

 head of the fibula, along the tendon of the popliteus muscle, beneath the lateral head of the gas- 

 trocnemius, and then under the tendon of the biceps, and between the long and short fibular 



Fig. 498.— Relations of the Popliteal Artery to Bones and Muscles, Left Side. 



Superior lateral articular artery • 



Tibial nerve • 



Fibular lateral ligament - 



Inferior lateral articular artery . 



Popliteus ■ 



Muscular branch to soleus " 

 Soleus ■ 

 Anterior tibial artery 



Peroneus longus ■ 

 Peroneal artery 



Branch of tibial nerve to flexor 

 hallucis longus 



V 



^^ 



Flexor hallucis longus ' 



Cutaneous branch of peroneal artery 



Peroneus brevis 

 Continuation of peroneal artery 



Calcaneus 



:aL 



Superior medial articular artery 



■ Popliteal artery 



■ Posterior ligament of knee 



Azygos articular artery 

 Semi-membranosus 



Inferior medial articular artery 

 Muscular branch 



Tibialis posterior 



Tibial nerve 



Muscular branch of tibial nerve to 

 flexor digitorum longus 



Flexor digitorum longus 



Posterior tibial artery 



Tibialis posterior 



Communicating branch 

 Laciniate ligament 



Internal calcaneal artery 



coUateral ligaments. Then winding to the front of the joint, it anastomoses above with the 

 superior lateral articular, below with the anterior tibial recurrent, and across the front of the 

 of the^'-oint '" "°^ medial articular. It also supphes branches to the lateral and lower part 



(e) The middle or azygos articular artery [a. genu media] arises from the deep surface of the 

 popliteal artery, and passes, with the articular branch of the obturator nerve, through the 



