No, it was built in 1173, many centuries after the end of the Roman Empire (476 a.C.). The tower was done as part of the complex of the Cathedral, built by Pisans as a symbol â¦of their power. Pisa after the fall of the Roman Empire was a big city, the most powerful in Tuscany and, in Middle Ages, it was a Republic.
10 most extreme places on Earth. Popliteal artery entrapment syndrome is a relatively rare developmental disorder in which the popliteal artery and the gastrocnemius muscle in the calf are oriented abnormally with respect to each other.
1 Popliteal artery: A branch of the femoral artery, the popliteal artery branches further to supply blood to the knee, thigh, and calf. 2  It ends at the anterior and posterior tibial arteries. 3  Posterior tibial artery: This branch of the popliteal artery supplies oxygenated blood to the leg and sole of the foot.n Depth: Vessels. Once blood is oxygenated in the lungs, it returns to the heart and is then pumped throughout the body. A web of blood vesselsâarteries, veins, and capillariesâcirculate blood to organs, muscles, bones, and other tissues.