What do the external iliac arteries turn into at the inguinal ligament?

The external iliac arteries transition into the common femoral arteries as they pass beneath the inguinal ligament. This anatomical landmark marks the point where the external iliac arteries, which supply blood to the lower limbs, are considered to enter the thigh as common femoral arteries. Understanding this transition is crucial for vascular anatomy, as it helps delineate the blood supply pathways in the leg and the relationships between these vessels.

The transition point at the inguinal ligament is significant for clinical procedures such as vascular access, as well as for understanding associated pathologies. The common femoral artery then continues its course down the thigh, where it subsequently branches off into the superficial femoral artery and deep femoral artery, among others. Awareness of this hierarchical organization within the vascular system assists professionals in accurately diagnosing and treating vascular conditions.