Переведите the abdominal artery ends when it bifurcates into the left and right common iliac arteries, each of which soon divides again into internal and external iliac arteries (sometimes called hypogastric arteries). from each of the internal iliac arteries come various arteries that supply blood to the pelvic area, including the reproductive organs. the external iliac artery becomes the femoral artery when it enters the thigh. continuing with the leg, the femoral artery of the thigh becomes the popliteal artery at the knee (popliteal is a medical term for the back of the knee), then divides into the posterior and anterior tibial arteries (the tibia is a bone in the lower leg). as described previously, the arterioles-to-capillaries-to-venules route is the most common pathway for blood. however, the arterioles in a few tissues never connect with capillaries, instead attaching to venules by way of wide vessels called arteriovenous anastomoses. these muscular vessels, which range from 7.9 × 10−4 to 5.3 × 10−3 inches (20–135 μm) in diameter, are common in the skin and in the nasal mucosa (in the nostrils), and regulate body temperature. heat from the body’s core is transported via the blood to these areas for release to the outside.
