You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when does the external iliac artery become the common femoral artery?" whose answer is pubic tubercle.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when the external iliac artery becomes the common femoral artery
Useful Output:

Doc 1: Each external iliac artery courses downward and laterally, turning into the femoral artery, which supplies each leg.
Doc 2: iliaca interna), the external iliac artery (A. iliaca externa) passes beneath the inguinal ligament and continues as the common femoral artery.
Doc 3: The external iliac artery continues as the common femoral artery as it crosses under the inguinal ligament to supply the lower extremities. The
Doc 4: The external iliac artery turns into the femoral artery after passing under the inguinal ligament. Image: The external iliac artery turns into the ______
Doc 5: The common femoral artery (CFA) begins distal to the inguinal ligament as a continuation of the external iliac artery. On angiography, the