![]() ![]() ![]() The popliteal artery runs down the back of the popliteus muscle, then passes through the fibrous arch in the origin of soleus. To follow the popliteal artery, we’ll remove gastrocnemius. Its branches to gastrocnemius have been removed. Here’s the popliteal artery, passing between the two heads of gastrocnemius. In the dissection that we’ll see, all the veins have been removed, to simplify the picture. They’re the anterior tibial, the posterior tibial, and the peroneal. The three main arteries which supply the leg and ankle region are all branches of the popliteal artery. In this section we won’t follow the deep veins any further, since their course is just the same as that of the corresponding arteries. With the tibial nerve behind it and the popliteal artery in front of it, it disappears between the two heads of gastrocnemius. In the last section we saw the principal deep vein of the leg, the popliteal vein. The short saphenous vein, like the long saphenous vein, is joined by a number of superficial branches The saphenous veins are also joined by several perforating veins like this one, which bring blood from the muscle compartments that lie deep to the investing deep fascia. To see some of the superficial veins in more detail, we’ll remove the subcutaneous fat from the back of the leg. It goes up the back of the leg, and passes through the deep fascia near the knee to join the popliteal vein. The short saphenous vein runs up between the calcaneal tendon and the lateral malleolus. We’ve seen its more proximal course in the previous sections of this tape. The long saphenous vein passes over the medial malleolus, which is here, and runs up the medial side of the leg. Here’s the short saphenous vein on the back, and the long saphenous vein on the front. To expose the two major superficial veins, two strips of subcutaneous fat have also been removed. We’ll go from the knee, where we saw them last, to just below the ankle. Now we’ll move on, to look at the vessels and nerves of the region. ![]()
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