The external iliac artery is a large blood vessel that runs from the pelvis down to the thigh. Its name comes from the Latin words "externalis" meaning outside, and "iliacus" referring to the ilium bone in the pelvis. The spelling of this word can be explained using the International Phonetic Alphabet (IPA) as: /ɛkˈstɜːrnəl ˈɪliæk ˈɑːtəri/. The first syllable is emphasized with a slightly higher pitch, and the "k" at the end of "external" is pronounced with a slight aspiration.
The external iliac artery is a major blood vessel located in the lower abdomen and pelvis. It is a branch of the common iliac artery, which arises from the abdominal aorta in the midline of the body. The external iliac artery extends downwards and laterally, passing beneath the inguinal ligament and into the lower extremities.
The main function of the external iliac artery is to supply oxygenated blood to the lower limbs. It gives off several branches along its course, including the inferior epigastric artery, deep circumflex iliac artery, and the femoral artery. These branches perfuse various structures in the lower abdomen and pelvis, such as the abdominal wall, pelvic organs, and muscles.
The external iliac artery is one of the major arteries that play a crucial role in maintaining proper circulation to the lower extremities. It is responsible for delivering oxygen and nutrients to the muscles, bones, and other tissues of the legs, allowing them to function optimally. Any obstruction or significant blockage in the external iliac artery can lead to reduced blood flow, resulting in symptoms like leg pain, weakness, or even tissue damage.
In summary, the external iliac artery is a significant blood vessel originating from the common iliac artery, providing blood supply to the lower limbs. Its branches help in supporting the circulation and necessary nutrients to the tissues in the lower abdomen and pelvis.