The popliteal artery is a major blood vessel located at the back of the knee. It is a continuation of the femoral artery, which supplies blood to the lower leg and foot. The popliteal artery branches into two main arteries, the anterior tibial artery and the posterior tibial artery, which further distribute blood to the lower extremities. This artery plays a crucial role in providing oxygenated blood to the muscles and tissues around the knee and lower leg. Its location makes it susceptible to injury, which can lead to complications in blood flow and overall leg health.