The Azygos Or Middle Articular Artery arises from the front of the popliteal artery, consequently will be best seen after the other branches have been dissected: it runs downwards and forwards, and pierces the posterior ligament of Winslowe, to supply the crucial ligaments and condyles of the femur: it is considerably smaller than either of the preceding arteries.

The division of the popliteal artery into its two terminating branches, the anterior and posterior tibial, takes place at the lower border of the popliteus muscle; sometimes, however, it takes place above this point, on the posterior surface of the muscle.