The external iliac arteries are major blood vessels that branch off from the common iliac arteries. They run along the pelvis and supply blood to the lower limbs. Each external iliac artery continues into the thigh, where it becomes the femoral artery, providing oxygen-rich blood to the legs. These arteries are crucial for delivering nutrients and oxygen to the muscles and tissues of the lower body. They also play a role in various medical procedures, such as vascular surgeries and interventions related to conditions affecting the lower extremities.