What is the major artery of the thigh, which is a continuation of the external iliac artery?

The femoral artery is the major artery of the thigh and serves as a direct continuation of the external iliac artery. This artery is crucial in supplying oxygenated blood to the lower limb, particularly the muscles and tissues of the thigh. As it travels down the thigh, it gives off various branches that supply the surrounding structures, including the profunda femoris (deep artery of the thigh).

Additionally, the femoral artery plays a significant role in procedures such as catheterization, where access is often gained via the femoral artery for diagnostics or interventions. Its location and large caliber make it essential in both the circulatory system and in certain medical practices.

In contrast, options like the popliteal artery, radial artery, and brachial artery serve different regions of the body. The popliteal artery is located behind the knee and is a continuation of the femoral artery, while the radial artery primarily serves the forearm and the hand, and the brachial artery supplies the upper arm. These arteries, while important, do not fulfill the role of the major artery in the thigh as the femoral artery does.