Medial circumflex femoral artery

The medial circumflex femoral artery (internal circumflex artery, medial femoral circumflex artery) is an artery in the upper thigh that arises from the profunda femoris artery. It supplies arterial blood to several muscles in the region, as well as the femoral head and neck. Damage to the artery following a femoral neck fracture may lead to avascular necrosis (ischemic) of the femoral neck/head. (Wikipedia)